20415470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120091}}^1$

素因数の和:120115

約数の個数: 16

約数和(自身を含む): 38909808

約数和(自身を除く): 18494338

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 120091, 240182, 600455, 1200910, 2041547, 4083094, 10207735, 20415470]

約数ペア:

[(1, 20415470), (2, 10207735), (5, 4083094), (10, 2041547), (17, 1200910), (34, 600455), (85, 240182), (170, 120091)]