289320577

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 364089600

約数和(自身を除く): 74769023

約数列:

[1, 7, 13, 89, 91, 139, 257, 623, 973, 1157, 1799, 1807, 3341, 8099, 12371, 12649, 22873, 23387, 35723, 86597, 160111, 160823, 250061, 297349, 464399, 1125761, 2081443, 3179347, 3250793, 22255429, 41331511, 289320577]

約数ペア:

[(1, 289320577), (7, 41331511), (13, 22255429), (89, 3250793), (91, 3179347), (139, 2081443), (257, 1125761), (623, 464399), (973, 297349), (1157, 250061), (1799, 160823), (1807, 160111), (3341, 86597), (8099, 35723), (12371, 23387), (12649, 22873)]