281567205

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{28571}}^1$

素因数の和:28658

約数の個数: 32

約数和(自身を含む): 507438720

約数和(自身を除く): 225871515

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1971, 3285, 9855, 28571, 85713, 142855, 257139, 428565, 771417, 1285695, 2085683, 3857085, 6257049, 10428415, 18771147, 31285245, 56313441, 93855735, 281567205]

約数ペア:

[(1, 281567205), (3, 93855735), (5, 56313441), (9, 31285245), (15, 18771147), (27, 10428415), (45, 6257049), (73, 3857085), (135, 2085683), (219, 1285695), (365, 771417), (657, 428565), (1095, 257139), (1971, 142855), (3285, 85713), (9855, 28571)]