220487725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{1699}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 284580000

約数和(自身を除く): 64092275

約数列:

[1, 5, 25, 29, 145, 179, 725, 895, 1699, 4475, 5191, 8495, 25955, 42475, 49271, 129775, 246355, 304121, 1231775, 1520605, 7603025, 8819509, 44097545, 220487725]

約数ペア:

[(1, 220487725), (5, 44097545), (25, 8819509), (29, 7603025), (145, 1520605), (179, 1231775), (725, 304121), (895, 246355), (1699, 129775), (4475, 49271), (5191, 42475), (8495, 25955)]