20388404740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{31727}}^1$

素因数の和:31897

約数の個数: 96

約数和(自身を含む): 49124081664

約数和(自身を除く): 28735676924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 127, 220, 230, 253, 254, 460, 506, 508, 635, 1012, 1265, 1270, 1397, 2530, 2540, 2794, 2921, 5060, 5588, 5842, 6985, 11684, 13970, 14605, 27940, 29210, 31727, 32131, 58420, 63454, 64262, 126908, 128524, 158635, 160655, 317270, 321310, 348997, 634540, 642620, 697994, 729721, 1395988, 1459442, 1744985, 2918884, 3489970, 3648605, 4029329, 6979940, 7297210, 8026931, 8058658, 14594420, 16053862, 16117316, 20146645, 32107724, 40134655, 40293290, 44322619, 80269310, 80586580, 88645238, 92674567, 160538620, 177290476, 185349134, 221613095, 370698268, 443226190, 463372835, 886452380, 926745670, 1019420237, 1853491340, 2038840474, 4077680948, 5097101185, 10194202370, 20388404740]

約数ペア:

[(1, 20388404740), (2, 10194202370), (4, 5097101185), (5, 4077680948), (10, 2038840474), (11, 1853491340), (20, 1019420237), (22, 926745670), (23, 886452380), (44, 463372835), (46, 443226190), (55, 370698268), (92, 221613095), (110, 185349134), (115, 177290476), (127, 160538620), (220, 92674567), (230, 88645238), (253, 80586580), (254, 80269310), (460, 44322619), (506, 40293290), (508, 40134655), (635, 32107724), (1012, 20146645), (1265, 16117316), (1270, 16053862), (1397, 14594420), (2530, 8058658), (2540, 8026931), (2794, 7297210), (2921, 6979940), (5060, 4029329), (5588, 3648605), (5842, 3489970), (6985, 2918884), (11684, 1744985), (13970, 1459442), (14605, 1395988), (27940, 729721), (29210, 697994), (31727, 642620), (32131, 634540), (58420, 348997), (63454, 321310), (64262, 317270), (126908, 160655), (128524, 158635)]