20278573640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:261

約数の個数: 256

約数和(自身を含む): 52307640000

約数和(自身を除く): 32029066360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 73, 104, 109, 116, 130, 145, 146, 169, 218, 232, 260, 290, 292, 338, 365, 377, 436, 520, 545, 580, 584, 676, 730, 754, 845, 872, 949, 1090, 1160, 1352, 1417, 1460, 1508, 1690, 1885, 1898, 2117, 2180, 2197, 2834, 2920, 3016, 3161, 3380, 3770, 3796, 4234, 4360, 4394, 4745, 4901, 5668, 6322, 6760, 7085, 7540, 7592, 7957, 8468, 8788, 9490, 9802, 10585, 10985, 11336, 12337, 12644, 14170, 15080, 15805, 15914, 16936, 17576, 18421, 18980, 19604, 21170, 21970, 24505, 24674, 25288, 27521, 28340, 31610, 31828, 36842, 37960, 39208, 39785, 41093, 42340, 43940, 49010, 49348, 55042, 56680, 61685, 63220, 63656, 63713, 73684, 79570, 82186, 84680, 87880, 92105, 98020, 98696, 103441, 110084, 123370, 126440, 127426, 137605, 147368, 159140, 160381, 164372, 184210, 196040, 205465, 206882, 220168, 230753, 239473, 246740, 254852, 275210, 318280, 318565, 320762, 328744, 357773, 368420, 410930, 413764, 461506, 478946, 493480, 509704, 517205, 534209, 550420, 637130, 641524, 715546, 736840, 801905, 821860, 827528, 923012, 957892, 1034410, 1068418, 1100840, 1153765, 1197365, 1274260, 1283048, 1344733, 1431092, 1603810, 1643720, 1788865, 1846024, 1915784, 2068820, 2136836, 2307530, 2394730, 2548520, 2671045, 2689466, 2862184, 2999789, 3207620, 3577730, 4137640, 4273672, 4615060, 4651049, 4789460, 5342090, 5378932, 5999578, 6415240, 6723665, 6944717, 7155460, 9230120, 9302098, 9578920, 10684180, 10757864, 11999156, 13447330, 13889434, 14310920, 14998945, 17481529, 18604196, 21368360, 23255245, 23998312, 26894660, 27778868, 29997890, 34723585, 34963058, 37208392, 38997257, 46510490, 53789320, 55557736, 59995780, 69447170, 69926116, 77994514, 87407645, 93020980, 119991560, 138894340, 139852232, 155989028, 174815290, 186041960, 194986285, 277788680, 311978056, 349630580, 389972570, 506964341, 699261160, 779945140, 1013928682, 1559890280, 2027857364, 2534821705, 4055714728, 5069643410, 10139286820, 20278573640]

約数ペア:

[(1, 20278573640), (2, 10139286820), (4, 5069643410), (5, 4055714728), (8, 2534821705), (10, 2027857364), (13, 1559890280), (20, 1013928682), (26, 779945140), (29, 699261160), (40, 506964341), (52, 389972570), (58, 349630580), (65, 311978056), (73, 277788680), (104, 194986285), (109, 186041960), (116, 174815290), (130, 155989028), (145, 139852232), (146, 138894340), (169, 119991560), (218, 93020980), (232, 87407645), (260, 77994514), (290, 69926116), (292, 69447170), (338, 59995780), (365, 55557736), (377, 53789320), (436, 46510490), (520, 38997257), (545, 37208392), (580, 34963058), (584, 34723585), (676, 29997890), (730, 27778868), (754, 26894660), (845, 23998312), (872, 23255245), (949, 21368360), (1090, 18604196), (1160, 17481529), (1352, 14998945), (1417, 14310920), (1460, 13889434), (1508, 13447330), (1690, 11999156), (1885, 10757864), (1898, 10684180), (2117, 9578920), (2180, 9302098), (2197, 9230120), (2834, 7155460), (2920, 6944717), (3016, 6723665), (3161, 6415240), (3380, 5999578), (3770, 5378932), (3796, 5342090), (4234, 4789460), (4360, 4651049), (4394, 4615060), (4745, 4273672), (4901, 4137640), (5668, 3577730), (6322, 3207620), (6760, 2999789), (7085, 2862184), (7540, 2689466), (7592, 2671045), (7957, 2548520), (8468, 2394730), (8788, 2307530), (9490, 2136836), (9802, 2068820), (10585, 1915784), (10985, 1846024), (11336, 1788865), (12337, 1643720), (12644, 1603810), (14170, 1431092), (15080, 1344733), (15805, 1283048), (15914, 1274260), (16936, 1197365), (17576, 1153765), (18421, 1100840), (18980, 1068418), (19604, 1034410), (21170, 957892), (21970, 923012), (24505, 827528), (24674, 821860), (25288, 801905), (27521, 736840), (28340, 715546), (31610, 641524), (31828, 637130), (36842, 550420), (37960, 534209), (39208, 517205), (39785, 509704), (41093, 493480), (42340, 478946), (43940, 461506), (49010, 413764), (49348, 410930), (55042, 368420), (56680, 357773), (61685, 328744), (63220, 320762), (63656, 318565), (63713, 318280), (73684, 275210), (79570, 254852), (82186, 246740), (84680, 239473), (87880, 230753), (92105, 220168), (98020, 206882), (98696, 205465), (103441, 196040), (110084, 184210), (123370, 164372), (126440, 160381), (127426, 159140), (137605, 147368)]