20740872020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{881}}^1\times {\mathrm{947}}^1$

素因数の和:1961

約数の個数: 96

約数和(自身を含む): 48041030016

約数和(自身を除く): 27300157996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 881, 947, 1130, 1243, 1762, 1894, 2260, 2486, 3524, 3788, 4405, 4735, 4972, 6215, 8810, 9470, 9691, 10417, 12430, 17620, 18940, 19382, 20834, 24860, 38764, 41668, 48455, 52085, 96910, 99553, 104170, 107011, 193820, 199106, 208340, 214022, 398212, 428044, 497765, 535055, 834307, 995530, 1070110, 1095083, 1177121, 1668614, 1991060, 2140220, 2190166, 2354242, 3337228, 4171535, 4380332, 4708484, 5475415, 5885605, 8343070, 9177377, 10950830, 11771210, 16686140, 18354754, 21901660, 23542420, 36709508, 45886885, 91773770, 94276691, 183547540, 188553382, 377106764, 471383455, 942766910, 1037043601, 1885533820, 2074087202, 4148174404, 5185218005, 10370436010, 20740872020]

約数ペア:

[(1, 20740872020), (2, 10370436010), (4, 5185218005), (5, 4148174404), (10, 2074087202), (11, 1885533820), (20, 1037043601), (22, 942766910), (44, 471383455), (55, 377106764), (110, 188553382), (113, 183547540), (220, 94276691), (226, 91773770), (452, 45886885), (565, 36709508), (881, 23542420), (947, 21901660), (1130, 18354754), (1243, 16686140), (1762, 11771210), (1894, 10950830), (2260, 9177377), (2486, 8343070), (3524, 5885605), (3788, 5475415), (4405, 4708484), (4735, 4380332), (4972, 4171535), (6215, 3337228), (8810, 2354242), (9470, 2190166), (9691, 2140220), (10417, 1991060), (12430, 1668614), (17620, 1177121), (18940, 1095083), (19382, 1070110), (20834, 995530), (24860, 834307), (38764, 535055), (41668, 497765), (48455, 428044), (52085, 398212), (96910, 214022), (99553, 208340), (104170, 199106), (107011, 193820)]