256000515

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{2113}}^1$

素因数の和:2359

約数の個数: 32

約数和(自身を含む): 421920576

約数和(自身を除く): 165920061

約数列:

[1, 3, 5, 15, 41, 123, 197, 205, 591, 615, 985, 2113, 2955, 6339, 8077, 10565, 24231, 31695, 40385, 86633, 121155, 259899, 416261, 433165, 1248783, 1299495, 2081305, 6243915, 17066701, 51200103, 85333505, 256000515]

約数ペア:

[(1, 256000515), (3, 85333505), (5, 51200103), (15, 17066701), (41, 6243915), (123, 2081305), (197, 1299495), (205, 1248783), (591, 433165), (615, 416261), (985, 259899), (2113, 121155), (2955, 86633), (6339, 40385), (8077, 31695), (10565, 24231)]