644265920

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:418

約数の個数: 112

約数和(自身を含む): 1573060608

約数和(自身を除く): 928794688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 127, 160, 166, 191, 254, 320, 332, 382, 415, 508, 635, 664, 764, 830, 955, 1016, 1270, 1328, 1528, 1660, 1910, 2032, 2540, 2656, 3056, 3320, 3820, 4064, 5080, 5312, 6112, 6640, 7640, 8128, 10160, 10541, 12224, 13280, 15280, 15853, 20320, 21082, 24257, 26560, 30560, 31706, 40640, 42164, 48514, 52705, 61120, 63412, 79265, 84328, 97028, 105410, 121285, 126824, 158530, 168656, 194056, 210820, 242570, 253648, 317060, 337312, 388112, 421640, 485140, 507296, 634120, 674624, 776224, 843280, 970280, 1014592, 1268240, 1552448, 1686560, 1940560, 2013331, 2536480, 3373120, 3881120, 4026662, 5072960, 7762240, 8053324, 10066655, 16106648, 20133310, 32213296, 40266620, 64426592, 80533240, 128853184, 161066480, 322132960, 644265920]

約数ペア:

[(1, 644265920), (2, 322132960), (4, 161066480), (5, 128853184), (8, 80533240), (10, 64426592), (16, 40266620), (20, 32213296), (32, 20133310), (40, 16106648), (64, 10066655), (80, 8053324), (83, 7762240), (127, 5072960), (160, 4026662), (166, 3881120), (191, 3373120), (254, 2536480), (320, 2013331), (332, 1940560), (382, 1686560), (415, 1552448), (508, 1268240), (635, 1014592), (664, 970280), (764, 843280), (830, 776224), (955, 674624), (1016, 634120), (1270, 507296), (1328, 485140), (1528, 421640), (1660, 388112), (1910, 337312), (2032, 317060), (2540, 253648), (2656, 242570), (3056, 210820), (3320, 194056), (3820, 168656), (4064, 158530), (5080, 126824), (5312, 121285), (6112, 105410), (6640, 97028), (7640, 84328), (8128, 79265), (10160, 63412), (10541, 61120), (12224, 52705), (13280, 48514), (15280, 42164), (15853, 40640), (20320, 31706), (21082, 30560), (24257, 26560)]