7781240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11443}}^1$

素因数の和:11471

約数の個数: 32

約数和(自身を含む): 18539280

約数和(自身を除く): 10758040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 11443, 22886, 45772, 57215, 91544, 114430, 194531, 228860, 389062, 457720, 778124, 972655, 1556248, 1945310, 3890620, 7781240]

約数ペア:

[(1, 7781240), (2, 3890620), (4, 1945310), (5, 1556248), (8, 972655), (10, 778124), (17, 457720), (20, 389062), (34, 228860), (40, 194531), (68, 114430), (85, 91544), (136, 57215), (170, 45772), (340, 22886), (680, 11443)]