19421000720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{3863}}^1$

素因数の和:4113

約数の個数: 160

約数和(自身を含む): 51229221120

約数和(自身を除く): 31808220400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 197, 220, 232, 290, 319, 394, 440, 464, 580, 638, 788, 880, 985, 1160, 1276, 1576, 1595, 1970, 2167, 2320, 2552, 3152, 3190, 3863, 3940, 4334, 5104, 5713, 6380, 7726, 7880, 8668, 10835, 11426, 12760, 15452, 15760, 17336, 19315, 21670, 22852, 25520, 28565, 30904, 34672, 38630, 42493, 43340, 45704, 57130, 61808, 62843, 77260, 84986, 86680, 91408, 112027, 114260, 125686, 154520, 169972, 173360, 212465, 224054, 228520, 251372, 309040, 314215, 339944, 424930, 448108, 457040, 502744, 560135, 628430, 679888, 761011, 849860, 896216, 1005488, 1120270, 1232297, 1256860, 1522022, 1699720, 1792432, 2240540, 2464594, 2513720, 3044044, 3399440, 3805055, 4481080, 4929188, 5027440, 6088088, 6161485, 7610110, 8371121, 8962160, 9858376, 12176176, 12322970, 15220220, 16742242, 19716752, 22069319, 24645940, 30440440, 33484484, 41855605, 44138638, 49291880, 60880880, 66968968, 83711210, 88277276, 98583760, 110346595, 133937936, 167422420, 176554552, 220693190, 242762509, 334844840, 353109104, 441386380, 485525018, 669689680, 882772760, 971050036, 1213812545, 1765545520, 1942100072, 2427625090, 3884200144, 4855250180, 9710500360, 19421000720]

約数ペア:

[(1, 19421000720), (2, 9710500360), (4, 4855250180), (5, 3884200144), (8, 2427625090), (10, 1942100072), (11, 1765545520), (16, 1213812545), (20, 971050036), (22, 882772760), (29, 669689680), (40, 485525018), (44, 441386380), (55, 353109104), (58, 334844840), (80, 242762509), (88, 220693190), (110, 176554552), (116, 167422420), (145, 133937936), (176, 110346595), (197, 98583760), (220, 88277276), (232, 83711210), (290, 66968968), (319, 60880880), (394, 49291880), (440, 44138638), (464, 41855605), (580, 33484484), (638, 30440440), (788, 24645940), (880, 22069319), (985, 19716752), (1160, 16742242), (1276, 15220220), (1576, 12322970), (1595, 12176176), (1970, 9858376), (2167, 8962160), (2320, 8371121), (2552, 7610110), (3152, 6161485), (3190, 6088088), (3863, 5027440), (3940, 4929188), (4334, 4481080), (5104, 3805055), (5713, 3399440), (6380, 3044044), (7726, 2513720), (7880, 2464594), (8668, 2240540), (10835, 1792432), (11426, 1699720), (12760, 1522022), (15452, 1256860), (15760, 1232297), (17336, 1120270), (19315, 1005488), (21670, 896216), (22852, 849860), (25520, 761011), (28565, 679888), (30904, 628430), (34672, 560135), (38630, 502744), (42493, 457040), (43340, 448108), (45704, 424930), (57130, 339944), (61808, 314215), (62843, 309040), (77260, 251372), (84986, 228520), (86680, 224054), (91408, 212465), (112027, 173360), (114260, 169972), (125686, 154520)]