20425704

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3851}}^1$

素因数の和:3890

約数の個数: 64

約数和(自身を含む): 58242240

約数和(自身を除く): 37816536

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 3851, 5304, 7702, 11553, 15404, 23106, 30808, 46212, 50063, 65467, 92424, 100126, 130934, 150189, 196401, 200252, 261868, 300378, 392802, 400504, 523736, 600756, 785604, 851071, 1201512, 1571208, 1702142, 2553213, 3404284, 5106426, 6808568, 10212852, 20425704]

約数ペア:

[(1, 20425704), (2, 10212852), (3, 6808568), (4, 5106426), (6, 3404284), (8, 2553213), (12, 1702142), (13, 1571208), (17, 1201512), (24, 851071), (26, 785604), (34, 600756), (39, 523736), (51, 400504), (52, 392802), (68, 300378), (78, 261868), (102, 200252), (104, 196401), (136, 150189), (156, 130934), (204, 100126), (221, 92424), (312, 65467), (408, 50063), (442, 46212), (663, 30808), (884, 23106), (1326, 15404), (1768, 11553), (2652, 7702), (3851, 5304)]