31861960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{863}}^1$

素因数の和:958

約数の個数: 64

約数和(自身を含む): 78382080

約数和(自身を除く): 46520120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 568, 710, 863, 923, 1420, 1726, 1846, 2840, 3452, 3692, 4315, 4615, 6904, 7384, 8630, 9230, 11219, 17260, 18460, 22438, 34520, 36920, 44876, 56095, 61273, 89752, 112190, 122546, 224380, 245092, 306365, 448760, 490184, 612730, 796549, 1225460, 1593098, 2450920, 3186196, 3982745, 6372392, 7965490, 15930980, 31861960]

約数ペア:

[(1, 31861960), (2, 15930980), (4, 7965490), (5, 6372392), (8, 3982745), (10, 3186196), (13, 2450920), (20, 1593098), (26, 1225460), (40, 796549), (52, 612730), (65, 490184), (71, 448760), (104, 306365), (130, 245092), (142, 224380), (260, 122546), (284, 112190), (355, 89752), (520, 61273), (568, 56095), (710, 44876), (863, 36920), (923, 34520), (1420, 22438), (1726, 18460), (1846, 17260), (2840, 11219), (3452, 9230), (3692, 8630), (4315, 7384), (4615, 6904)]