31290340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1229}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 70257600

約数和(自身を除く): 38967260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1229, 1273, 1340, 2458, 2546, 4916, 5092, 6145, 6365, 12290, 12730, 23351, 24580, 25460, 46702, 82343, 93404, 116755, 164686, 233510, 329372, 411715, 467020, 823430, 1564517, 1646860, 3129034, 6258068, 7822585, 15645170, 31290340]

約数ペア:

[(1, 31290340), (2, 15645170), (4, 7822585), (5, 6258068), (10, 3129034), (19, 1646860), (20, 1564517), (38, 823430), (67, 467020), (76, 411715), (95, 329372), (134, 233510), (190, 164686), (268, 116755), (335, 93404), (380, 82343), (670, 46702), (1229, 25460), (1273, 24580), (1340, 23351), (2458, 12730), (2546, 12290), (4916, 6365), (5092, 6145)]