28405430

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{14419}}^1$

素因数の和:14623

約数の個数: 16

約数和(自身を含む): 51392880

約数和(自身を除く): 22987450

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 14419, 28838, 72095, 144190, 2840543, 5681086, 14202715, 28405430]

約数ペア:

[(1, 28405430), (2, 14202715), (5, 5681086), (10, 2840543), (197, 144190), (394, 72095), (985, 28838), (1970, 14419)]