20778922010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1587389}}^1$

素因数の和:1587431

約数の個数: 64

約数和(自身を含む): 49374178560

約数和(自身を除く): 28595256550

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 154, 170, 187, 238, 374, 385, 595, 770, 935, 1190, 1309, 1870, 2618, 6545, 13090, 1587389, 3174778, 7936945, 11111723, 15873890, 17461279, 22223446, 26985613, 34922558, 53971226, 55558615, 87306395, 111117230, 122228953, 134928065, 174612790, 188899291, 244457906, 269856130, 296841743, 377798582, 593683486, 611144765, 944496455, 1222289530, 1484208715, 1888992910, 2077892201, 2968417430, 4155784402, 10389461005, 20778922010]

約数ペア:

[(1, 20778922010), (2, 10389461005), (5, 4155784402), (7, 2968417430), (10, 2077892201), (11, 1888992910), (14, 1484208715), (17, 1222289530), (22, 944496455), (34, 611144765), (35, 593683486), (55, 377798582), (70, 296841743), (77, 269856130), (85, 244457906), (110, 188899291), (119, 174612790), (154, 134928065), (170, 122228953), (187, 111117230), (238, 87306395), (374, 55558615), (385, 53971226), (595, 34922558), (770, 26985613), (935, 22223446), (1190, 17461279), (1309, 15873890), (1870, 11111723), (2618, 7936945), (6545, 3174778), (13090, 1587389)]