86945180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8747}}^1$

素因数の和:8834

約数の個数: 48

約数和(自身を含む): 211631616

約数和(自身を除く): 124686436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 8747, 9940, 17494, 34988, 43735, 61229, 87470, 122458, 174940, 244916, 306145, 612290, 621037, 1224580, 1242074, 2484148, 3105185, 4347259, 6210370, 8694518, 12420740, 17389036, 21736295, 43472590, 86945180]

約数ペア:

[(1, 86945180), (2, 43472590), (4, 21736295), (5, 17389036), (7, 12420740), (10, 8694518), (14, 6210370), (20, 4347259), (28, 3105185), (35, 2484148), (70, 1242074), (71, 1224580), (140, 621037), (142, 612290), (284, 306145), (355, 244916), (497, 174940), (710, 122458), (994, 87470), (1420, 61229), (1988, 43735), (2485, 34988), (4970, 17494), (8747, 9940)]