640738380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{344483}}^1$

素因数の和:344526

約数の個数: 48

約数和(自身を含む): 1851945984

約数和(自身を除く): 1211207604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 344483, 688966, 1033449, 1377932, 1722415, 2066898, 3444830, 4133796, 5167245, 6889660, 10334490, 10678973, 20668980, 21357946, 32036919, 42715892, 53394865, 64073838, 106789730, 128147676, 160184595, 213579460, 320369190, 640738380]

約数ペア:

[(1, 640738380), (2, 320369190), (3, 213579460), (4, 160184595), (5, 128147676), (6, 106789730), (10, 64073838), (12, 53394865), (15, 42715892), (20, 32036919), (30, 21357946), (31, 20668980), (60, 10678973), (62, 10334490), (93, 6889660), (124, 5167245), (155, 4133796), (186, 3444830), (310, 2066898), (372, 1722415), (465, 1377932), (620, 1033449), (930, 688966), (1860, 344483)]