289968795

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13681}}^1$

素因数の和:13852

約数の個数: 32

約数和(自身を含む): 518821440

約数和(自身を除く): 228852645

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 2355, 4239, 7065, 13681, 21195, 41043, 68405, 123129, 205215, 369387, 615645, 1846935, 2147917, 6443751, 10739585, 19331253, 32218755, 57993759, 96656265, 289968795]

約数ペア:

[(1, 289968795), (3, 96656265), (5, 57993759), (9, 32218755), (15, 19331253), (27, 10739585), (45, 6443751), (135, 2147917), (157, 1846935), (471, 615645), (785, 369387), (1413, 205215), (2355, 123129), (4239, 68405), (7065, 41043), (13681, 21195)]