20147893640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1755043}}^1$

素因数の和:1755102

約数の個数: 64

約数和(自身を含む): 53072530560

約数和(自身を除く): 32924636920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2870, 5740, 11480, 1755043, 3510086, 7020172, 8775215, 12285301, 14040344, 17550430, 24570602, 35100860, 49141204, 61426505, 70201720, 71956763, 98282408, 122853010, 143913526, 245706020, 287827052, 359783815, 491412040, 503697341, 575654104, 719567630, 1007394682, 1439135260, 2014789364, 2518486705, 2878270520, 4029578728, 5036973410, 10073946820, 20147893640]

約数ペア:

[(1, 20147893640), (2, 10073946820), (4, 5036973410), (5, 4029578728), (7, 2878270520), (8, 2518486705), (10, 2014789364), (14, 1439135260), (20, 1007394682), (28, 719567630), (35, 575654104), (40, 503697341), (41, 491412040), (56, 359783815), (70, 287827052), (82, 245706020), (140, 143913526), (164, 122853010), (205, 98282408), (280, 71956763), (287, 70201720), (328, 61426505), (410, 49141204), (574, 35100860), (820, 24570602), (1148, 17550430), (1435, 14040344), (1640, 12285301), (2296, 8775215), (2870, 7020172), (5740, 3510086), (11480, 1755043)]