139624420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 321428520

約数和(自身を除く): 181804100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 169, 202, 260, 338, 404, 409, 505, 676, 818, 845, 1010, 1313, 1636, 1690, 2020, 2045, 2626, 3380, 4090, 5252, 5317, 6565, 8180, 10634, 13130, 17069, 21268, 26260, 26585, 34138, 41309, 53170, 68276, 69121, 82618, 85345, 106340, 138242, 165236, 170690, 206545, 276484, 341380, 345605, 413090, 537017, 691210, 826180, 1074034, 1382420, 2148068, 2685085, 5370170, 6981221, 10740340, 13962442, 27924884, 34906105, 69812210, 139624420]

約数ペア:

[(1, 139624420), (2, 69812210), (4, 34906105), (5, 27924884), (10, 13962442), (13, 10740340), (20, 6981221), (26, 5370170), (52, 2685085), (65, 2148068), (101, 1382420), (130, 1074034), (169, 826180), (202, 691210), (260, 537017), (338, 413090), (404, 345605), (409, 341380), (505, 276484), (676, 206545), (818, 170690), (845, 165236), (1010, 138242), (1313, 106340), (1636, 85345), (1690, 82618), (2020, 69121), (2045, 68276), (2626, 53170), (3380, 41309), (4090, 34138), (5252, 26585), (5317, 26260), (6565, 21268), (8180, 17069), (10634, 13130)]