15975920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{691}}^1$

素因数の和:738

約数の個数: 60

約数和(自身を含む): 39514584

約数和(自身を除く): 23538664

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 691, 1156, 1360, 1382, 1445, 2312, 2764, 2890, 3455, 4624, 5528, 5780, 6910, 11056, 11560, 11747, 13820, 23120, 23494, 27640, 46988, 55280, 58735, 93976, 117470, 187952, 199699, 234940, 399398, 469880, 798796, 939760, 998495, 1597592, 1996990, 3195184, 3993980, 7987960, 15975920]

約数ペア:

[(1, 15975920), (2, 7987960), (4, 3993980), (5, 3195184), (8, 1996990), (10, 1597592), (16, 998495), (17, 939760), (20, 798796), (34, 469880), (40, 399398), (68, 234940), (80, 199699), (85, 187952), (136, 117470), (170, 93976), (272, 58735), (289, 55280), (340, 46988), (578, 27640), (680, 23494), (691, 23120), (1156, 13820), (1360, 11747), (1382, 11560), (1445, 11056), (2312, 6910), (2764, 5780), (2890, 5528), (3455, 4624)]