648621680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37363}}^1$

素因数の和:37414

約数の個数: 80

約数和(自身を含む): 1779124224

約数和(自身を除く): 1130502544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 37363, 74726, 149452, 186815, 261541, 298904, 373630, 523082, 597808, 747260, 1046164, 1158253, 1307705, 1494520, 2092328, 2316506, 2615410, 2989040, 4184656, 4633012, 5230820, 5791265, 8107771, 9266024, 10461640, 11582530, 16215542, 18532048, 20923280, 23165060, 32431084, 40538855, 46330120, 64862168, 81077710, 92660240, 129724336, 162155420, 324310840, 648621680]

約数ペア:

[(1, 648621680), (2, 324310840), (4, 162155420), (5, 129724336), (7, 92660240), (8, 81077710), (10, 64862168), (14, 46330120), (16, 40538855), (20, 32431084), (28, 23165060), (31, 20923280), (35, 18532048), (40, 16215542), (56, 11582530), (62, 10461640), (70, 9266024), (80, 8107771), (112, 5791265), (124, 5230820), (140, 4633012), (155, 4184656), (217, 2989040), (248, 2615410), (280, 2316506), (310, 2092328), (434, 1494520), (496, 1307705), (560, 1158253), (620, 1046164), (868, 747260), (1085, 597808), (1240, 523082), (1736, 373630), (2170, 298904), (2480, 261541), (3472, 186815), (4340, 149452), (8680, 74726), (17360, 37363)]