209780355

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1\times {\mathrm{1319}}^1$

素因数の和:1811

約数の個数: 32

約数和(自身を含む): 351267840

約数和(自身を除く): 141487485

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 461, 1319, 1383, 2305, 3957, 6595, 6915, 10603, 19785, 30337, 31809, 53015, 91011, 151685, 159045, 455055, 608059, 1824177, 3040295, 9120885, 13985357, 41956071, 69926785, 209780355]

約数ペア:

[(1, 209780355), (3, 69926785), (5, 41956071), (15, 13985357), (23, 9120885), (69, 3040295), (115, 1824177), (345, 608059), (461, 455055), (1319, 159045), (1383, 151685), (2305, 91011), (3957, 53015), (6595, 31809), (6915, 30337), (10603, 19785)]