20172958820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1\times {\mathrm{2243}}^1$

素因数の和:2769

約数の個数: 96

約数和(自身を含む): 48821971968

約数和(自身を除く): 28649013148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 283, 454, 566, 908, 1132, 1135, 1415, 1589, 1981, 2243, 2270, 2830, 3178, 3962, 4486, 4540, 5660, 6356, 7924, 7945, 8972, 9905, 11215, 15701, 15890, 19810, 22430, 31402, 31780, 39620, 44860, 62804, 64241, 78505, 128482, 157010, 256964, 314020, 321205, 449687, 509161, 634769, 642410, 899374, 1018322, 1269538, 1284820, 1798748, 2036644, 2248435, 2539076, 2545805, 3173845, 3564127, 4443383, 4496870, 5091610, 6347690, 7128254, 8886766, 8993740, 10183220, 12695380, 14256508, 17773532, 17820635, 22216915, 35641270, 44433830, 71282540, 88867660, 144092563, 288185126, 576370252, 720462815, 1008647941, 1440925630, 2017295882, 2881851260, 4034591764, 5043239705, 10086479410, 20172958820]

約数ペア:

[(1, 20172958820), (2, 10086479410), (4, 5043239705), (5, 4034591764), (7, 2881851260), (10, 2017295882), (14, 1440925630), (20, 1008647941), (28, 720462815), (35, 576370252), (70, 288185126), (140, 144092563), (227, 88867660), (283, 71282540), (454, 44433830), (566, 35641270), (908, 22216915), (1132, 17820635), (1135, 17773532), (1415, 14256508), (1589, 12695380), (1981, 10183220), (2243, 8993740), (2270, 8886766), (2830, 7128254), (3178, 6347690), (3962, 5091610), (4486, 4496870), (4540, 4443383), (5660, 3564127), (6356, 3173845), (7924, 2545805), (7945, 2539076), (8972, 2248435), (9905, 2036644), (11215, 1798748), (15701, 1284820), (15890, 1269538), (19810, 1018322), (22430, 899374), (31402, 642410), (31780, 634769), (39620, 509161), (44860, 449687), (62804, 321205), (64241, 314020), (78505, 256964), (128482, 157010)]