31331380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2011}}^1$

素因数の和:2080

約数の個数: 48

約数和(自身を含む): 70983360

約数和(自身を除く): 39651980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 2011, 3116, 3895, 4022, 7790, 8044, 10055, 15580, 20110, 38209, 40220, 76418, 82451, 152836, 164902, 191045, 329804, 382090, 412255, 764180, 824510, 1566569, 1649020, 3133138, 6266276, 7832845, 15665690, 31331380]

約数ペア:

[(1, 31331380), (2, 15665690), (4, 7832845), (5, 6266276), (10, 3133138), (19, 1649020), (20, 1566569), (38, 824510), (41, 764180), (76, 412255), (82, 382090), (95, 329804), (164, 191045), (190, 164902), (205, 152836), (380, 82451), (410, 76418), (779, 40220), (820, 38209), (1558, 20110), (2011, 15580), (3116, 10055), (3895, 8044), (4022, 7790)]