64987520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:212

約数の個数: 128

約数和(自身を含む): 171188640

約数和(自身を除く): 106201120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 73, 80, 104, 107, 128, 130, 146, 160, 208, 214, 260, 292, 320, 365, 416, 428, 520, 535, 584, 640, 730, 832, 856, 949, 1040, 1070, 1168, 1391, 1460, 1664, 1712, 1898, 2080, 2140, 2336, 2782, 2920, 3424, 3796, 4160, 4280, 4672, 4745, 5564, 5840, 6848, 6955, 7592, 7811, 8320, 8560, 9344, 9490, 11128, 11680, 13696, 13910, 15184, 15622, 17120, 18980, 22256, 23360, 27820, 30368, 31244, 34240, 37960, 39055, 44512, 46720, 55640, 60736, 62488, 68480, 75920, 78110, 89024, 101543, 111280, 121472, 124976, 151840, 156220, 178048, 203086, 222560, 249952, 303680, 312440, 406172, 445120, 499904, 507715, 607360, 624880, 812344, 890240, 999808, 1015430, 1249760, 1624688, 2030860, 2499520, 3249376, 4061720, 4999040, 6498752, 8123440, 12997504, 16246880, 32493760, 64987520]

約数ペア:

[(1, 64987520), (2, 32493760), (4, 16246880), (5, 12997504), (8, 8123440), (10, 6498752), (13, 4999040), (16, 4061720), (20, 3249376), (26, 2499520), (32, 2030860), (40, 1624688), (52, 1249760), (64, 1015430), (65, 999808), (73, 890240), (80, 812344), (104, 624880), (107, 607360), (128, 507715), (130, 499904), (146, 445120), (160, 406172), (208, 312440), (214, 303680), (260, 249952), (292, 222560), (320, 203086), (365, 178048), (416, 156220), (428, 151840), (520, 124976), (535, 121472), (584, 111280), (640, 101543), (730, 89024), (832, 78110), (856, 75920), (949, 68480), (1040, 62488), (1070, 60736), (1168, 55640), (1391, 46720), (1460, 44512), (1664, 39055), (1712, 37960), (1898, 34240), (2080, 31244), (2140, 30368), (2336, 27820), (2782, 23360), (2920, 22256), (3424, 18980), (3796, 17120), (4160, 15622), (4280, 15184), (4672, 13910), (4745, 13696), (5564, 11680), (5840, 11128), (6848, 9490), (6955, 9344), (7592, 8560), (7811, 8320)]