290464355

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 375598080

約数和(自身を除く): 85133725

約数列:

[1, 5, 23, 43, 115, 151, 215, 389, 755, 989, 1945, 3473, 4945, 6493, 8947, 16727, 17365, 32465, 44735, 58739, 83635, 149339, 293695, 384721, 746695, 1350997, 1923605, 2525777, 6754985, 12628885, 58092871, 290464355]

約数ペア:

[(1, 290464355), (5, 58092871), (23, 12628885), (43, 6754985), (115, 2525777), (151, 1923605), (215, 1350997), (389, 746695), (755, 384721), (989, 293695), (1945, 149339), (3473, 83635), (4945, 58739), (6493, 44735), (8947, 32465), (16727, 17365)]