28306070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217739}}^1$

素因数の和:217759

約数の個数: 16

約数和(自身を含む): 54870480

約数和(自身を除く): 26564410

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217739, 435478, 1088695, 2177390, 2830607, 5661214, 14153035, 28306070]

約数ペア:

[(1, 28306070), (2, 14153035), (5, 5661214), (10, 2830607), (13, 2177390), (26, 1088695), (65, 435478), (130, 217739)]