138388840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1801}}^1$

素因数の和:1942

約数の個数: 64

約数和(自身を含む): 332793360

約数和(自身を除く): 194404520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 113, 136, 170, 226, 340, 452, 565, 680, 904, 1130, 1801, 1921, 2260, 3602, 3842, 4520, 7204, 7684, 9005, 9605, 14408, 15368, 18010, 19210, 30617, 36020, 38420, 61234, 72040, 76840, 122468, 153085, 203513, 244936, 306170, 407026, 612340, 814052, 1017565, 1224680, 1628104, 2035130, 3459721, 4070260, 6919442, 8140520, 13838884, 17298605, 27677768, 34597210, 69194420, 138388840]

約数ペア:

[(1, 138388840), (2, 69194420), (4, 34597210), (5, 27677768), (8, 17298605), (10, 13838884), (17, 8140520), (20, 6919442), (34, 4070260), (40, 3459721), (68, 2035130), (85, 1628104), (113, 1224680), (136, 1017565), (170, 814052), (226, 612340), (340, 407026), (452, 306170), (565, 244936), (680, 203513), (904, 153085), (1130, 122468), (1801, 76840), (1921, 72040), (2260, 61234), (3602, 38420), (3842, 36020), (4520, 30617), (7204, 19210), (7684, 18010), (9005, 15368), (9605, 14408)]