28565420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{607}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 65065728

約数和(自身を除く): 36500308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 607, 724, 905, 1214, 1810, 2353, 2428, 3035, 3620, 4706, 6070, 7891, 9412, 11765, 12140, 15782, 23530, 31564, 39455, 47060, 78910, 109867, 157820, 219734, 439468, 549335, 1098670, 1428271, 2197340, 2856542, 5713084, 7141355, 14282710, 28565420]

約数ペア:

[(1, 28565420), (2, 14282710), (4, 7141355), (5, 5713084), (10, 2856542), (13, 2197340), (20, 1428271), (26, 1098670), (52, 549335), (65, 439468), (130, 219734), (181, 157820), (260, 109867), (362, 78910), (607, 47060), (724, 39455), (905, 31564), (1214, 23530), (1810, 15782), (2353, 12140), (2428, 11765), (3035, 9412), (3620, 7891), (4706, 6070)]