168408890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{5657}}^1$

素因数の和:5906

約数の個数: 32

約数和(自身を含む): 327937680

約数和(自身を除く): 159528790

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 229, 458, 1145, 2290, 2977, 5657, 5954, 11314, 14885, 28285, 29770, 56570, 73541, 147082, 367705, 735410, 1295453, 2590906, 6477265, 12954530, 16840889, 33681778, 84204445, 168408890]

約数ペア:

[(1, 168408890), (2, 84204445), (5, 33681778), (10, 16840889), (13, 12954530), (26, 6477265), (65, 2590906), (130, 1295453), (229, 735410), (458, 367705), (1145, 147082), (2290, 73541), (2977, 56570), (5657, 29770), (5954, 28285), (11314, 14885)]