31951840

素因数分解:

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

素因数の和:740

約数の個数: 72

約数和(自身を含む): 80303832

約数和(自身を除く): 48351992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 289, 340, 544, 578, 680, 691, 1156, 1360, 1382, 1445, 2312, 2720, 2764, 2890, 3455, 4624, 5528, 5780, 6910, 9248, 11056, 11560, 11747, 13820, 22112, 23120, 23494, 27640, 46240, 46988, 55280, 58735, 93976, 110560, 117470, 187952, 199699, 234940, 375904, 399398, 469880, 798796, 939760, 998495, 1597592, 1879520, 1996990, 3195184, 3993980, 6390368, 7987960, 15975920, 31951840]

約数ペア:

[(1, 31951840), (2, 15975920), (4, 7987960), (5, 6390368), (8, 3993980), (10, 3195184), (16, 1996990), (17, 1879520), (20, 1597592), (32, 998495), (34, 939760), (40, 798796), (68, 469880), (80, 399398), (85, 375904), (136, 234940), (160, 199699), (170, 187952), (272, 117470), (289, 110560), (340, 93976), (544, 58735), (578, 55280), (680, 46988), (691, 46240), (1156, 27640), (1360, 23494), (1382, 23120), (1445, 22112), (2312, 13820), (2720, 11747), (2764, 11560), (2890, 11056), (3455, 9248), (4624, 6910), (5528, 5780)]