28797980

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13457}}^1$

素因数の和:13573

約数の個数: 24

約数和(自身を含む): 61045488

約数和(自身を除く): 32247508

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 13457, 26914, 53828, 67285, 134570, 269140, 1439899, 2879798, 5759596, 7199495, 14398990, 28797980]

約数ペア:

[(1, 28797980), (2, 14398990), (4, 7199495), (5, 5759596), (10, 2879798), (20, 1439899), (107, 269140), (214, 134570), (428, 67285), (535, 53828), (1070, 26914), (2140, 13457)]