18041080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 44051040

約数和(自身を除く): 26009960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 617, 680, 731, 860, 1234, 1462, 1720, 2468, 2924, 3085, 3655, 4936, 5848, 6170, 7310, 10489, 12340, 14620, 20978, 24680, 26531, 29240, 41956, 52445, 53062, 83912, 104890, 106124, 132655, 209780, 212248, 265310, 419560, 451027, 530620, 902054, 1061240, 1804108, 2255135, 3608216, 4510270, 9020540, 18041080]

約数ペア:

[(1, 18041080), (2, 9020540), (4, 4510270), (5, 3608216), (8, 2255135), (10, 1804108), (17, 1061240), (20, 902054), (34, 530620), (40, 451027), (43, 419560), (68, 265310), (85, 212248), (86, 209780), (136, 132655), (170, 106124), (172, 104890), (215, 83912), (340, 53062), (344, 52445), (430, 41956), (617, 29240), (680, 26531), (731, 24680), (860, 20978), (1234, 14620), (1462, 12340), (1720, 10489), (2468, 7310), (2924, 6170), (3085, 5848), (3655, 4936)]