20038340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3491}}^1$

素因数の和:3548

約数の個数: 48

約数和(自身を含む): 49279104

約数和(自身を除く): 29240764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3491, 5740, 6982, 13964, 17455, 24437, 34910, 48874, 69820, 97748, 122185, 143131, 244370, 286262, 488740, 572524, 715655, 1001917, 1431310, 2003834, 2862620, 4007668, 5009585, 10019170, 20038340]

約数ペア:

[(1, 20038340), (2, 10019170), (4, 5009585), (5, 4007668), (7, 2862620), (10, 2003834), (14, 1431310), (20, 1001917), (28, 715655), (35, 572524), (41, 488740), (70, 286262), (82, 244370), (140, 143131), (164, 122185), (205, 97748), (287, 69820), (410, 48874), (574, 34910), (820, 24437), (1148, 17455), (1435, 13964), (2870, 6982), (3491, 5740)]