20776990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{883}}^1$

素因数の和:1084

約数の個数: 32

約数和(自身を含む): 40543776

約数和(自身を除く): 19766786

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 181, 362, 883, 905, 1766, 1810, 2353, 4415, 4706, 8830, 11479, 11765, 22958, 23530, 57395, 114790, 159823, 319646, 799115, 1598230, 2077699, 4155398, 10388495, 20776990]

約数ペア:

[(1, 20776990), (2, 10388495), (5, 4155398), (10, 2077699), (13, 1598230), (26, 799115), (65, 319646), (130, 159823), (181, 114790), (362, 57395), (883, 23530), (905, 22958), (1766, 11765), (1810, 11479), (2353, 8830), (4415, 4706)]