19806830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 37110528

約数和(自身を除く): 17303698

約数列:

[1, 2, 5, 10, 31, 62, 155, 181, 310, 353, 362, 706, 905, 1765, 1810, 3530, 5611, 10943, 11222, 21886, 28055, 54715, 56110, 63893, 109430, 127786, 319465, 638930, 1980683, 3961366, 9903415, 19806830]

約数ペア:

[(1, 19806830), (2, 9903415), (5, 3961366), (10, 1980683), (31, 638930), (62, 319465), (155, 127786), (181, 109430), (310, 63893), (353, 56110), (362, 54715), (706, 28055), (905, 21886), (1765, 11222), (1810, 10943), (3530, 5611)]