20728542900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{3821}}^1$

素因数の和:3971

約数の個数: 216

約数和(自身を含む): 65566990944

約数和(自身を除く): 44838448044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 107, 130, 150, 156, 169, 195, 214, 260, 300, 321, 325, 338, 390, 428, 507, 535, 642, 650, 676, 780, 845, 975, 1014, 1070, 1284, 1300, 1391, 1605, 1690, 1950, 2028, 2140, 2535, 2675, 2782, 3210, 3380, 3821, 3900, 4173, 4225, 5070, 5350, 5564, 6420, 6955, 7642, 8025, 8346, 8450, 10140, 10700, 11463, 12675, 13910, 15284, 16050, 16692, 16900, 18083, 19105, 20865, 22926, 25350, 27820, 32100, 34775, 36166, 38210, 41730, 45852, 49673, 50700, 54249, 57315, 69550, 72332, 76420, 83460, 90415, 95525, 99346, 104325, 108498, 114630, 139100, 149019, 180830, 191050, 198692, 208650, 216996, 229260, 248365, 271245, 286575, 298038, 361660, 382100, 408847, 417300, 452075, 496730, 542490, 573150, 596076, 645749, 745095, 817694, 904150, 993460, 1084980, 1146300, 1226541, 1241825, 1291498, 1356225, 1490190, 1635388, 1808300, 1937247, 2044235, 2453082, 2483650, 2582996, 2712450, 2980380, 3228745, 3725475, 3874494, 4088470, 4906164, 4967300, 5315011, 5424900, 6132705, 6457490, 7450950, 7748988, 8176940, 9686235, 10221175, 10630022, 12265410, 12914980, 14901900, 15945033, 16143725, 19372470, 20442350, 21260044, 24530820, 26575055, 30663525, 31890066, 32287450, 38744940, 40884700, 48431175, 53150110, 61327050, 63780132, 64574900, 69095143, 79725165, 96862350, 106300220, 122654100, 132875275, 138190286, 159450330, 193724700, 207285429, 265750550, 276380572, 318900660, 345475715, 398625825, 414570858, 531501100, 690951430, 797251650, 829141716, 1036427145, 1381902860, 1594503300, 1727378575, 2072854290, 3454757150, 4145708580, 5182135725, 6909514300, 10364271450, 20728542900]

約数ペア:

[(1, 20728542900), (2, 10364271450), (3, 6909514300), (4, 5182135725), (5, 4145708580), (6, 3454757150), (10, 2072854290), (12, 1727378575), (13, 1594503300), (15, 1381902860), (20, 1036427145), (25, 829141716), (26, 797251650), (30, 690951430), (39, 531501100), (50, 414570858), (52, 398625825), (60, 345475715), (65, 318900660), (75, 276380572), (78, 265750550), (100, 207285429), (107, 193724700), (130, 159450330), (150, 138190286), (156, 132875275), (169, 122654100), (195, 106300220), (214, 96862350), (260, 79725165), (300, 69095143), (321, 64574900), (325, 63780132), (338, 61327050), (390, 53150110), (428, 48431175), (507, 40884700), (535, 38744940), (642, 32287450), (650, 31890066), (676, 30663525), (780, 26575055), (845, 24530820), (975, 21260044), (1014, 20442350), (1070, 19372470), (1284, 16143725), (1300, 15945033), (1391, 14901900), (1605, 12914980), (1690, 12265410), (1950, 10630022), (2028, 10221175), (2140, 9686235), (2535, 8176940), (2675, 7748988), (2782, 7450950), (3210, 6457490), (3380, 6132705), (3821, 5424900), (3900, 5315011), (4173, 4967300), (4225, 4906164), (5070, 4088470), (5350, 3874494), (5564, 3725475), (6420, 3228745), (6955, 2980380), (7642, 2712450), (8025, 2582996), (8346, 2483650), (8450, 2453082), (10140, 2044235), (10700, 1937247), (11463, 1808300), (12675, 1635388), (13910, 1490190), (15284, 1356225), (16050, 1291498), (16692, 1241825), (16900, 1226541), (18083, 1146300), (19105, 1084980), (20865, 993460), (22926, 904150), (25350, 817694), (27820, 745095), (32100, 645749), (34775, 596076), (36166, 573150), (38210, 542490), (41730, 496730), (45852, 452075), (49673, 417300), (50700, 408847), (54249, 382100), (57315, 361660), (69550, 298038), (72332, 286575), (76420, 271245), (83460, 248365), (90415, 229260), (95525, 216996), (99346, 208650), (104325, 198692), (108498, 191050), (114630, 180830), (139100, 149019)]