20177577355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{1567}}^1$

素因数の和:1916

約数の個数: 64

約数和(自身を含む): 28373925888

約数和(自身を除く): 8196348533

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 271, 559, 731, 1105, 1355, 1567, 2795, 3523, 3655, 4607, 7835, 9503, 11653, 17615, 20371, 23035, 26639, 47515, 58265, 59891, 67381, 101855, 133195, 151489, 198101, 299455, 336905, 346307, 424657, 757445, 875953, 990505, 1145477, 1731535, 2123285, 2575313, 4379765, 5520541, 5727385, 7219169, 12876565, 14891201, 18260251, 27602705, 36095845, 74456005, 91301255, 93849197, 237383263, 310424267, 469245985, 1186916315, 1552121335, 4035515471, 20177577355]

約数ペア:

[(1, 20177577355), (5, 4035515471), (13, 1552121335), (17, 1186916315), (43, 469245985), (65, 310424267), (85, 237383263), (215, 93849197), (221, 91301255), (271, 74456005), (559, 36095845), (731, 27602705), (1105, 18260251), (1355, 14891201), (1567, 12876565), (2795, 7219169), (3523, 5727385), (3655, 5520541), (4607, 4379765), (7835, 2575313), (9503, 2123285), (11653, 1731535), (17615, 1145477), (20371, 990505), (23035, 875953), (26639, 757445), (47515, 424657), (58265, 346307), (59891, 336905), (67381, 299455), (101855, 198101), (133195, 151489)]