26658125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:243

約数の個数: 40

約数和(自身を含む): 38181528

約数和(自身を除く): 11523403

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 193, 221, 325, 425, 625, 965, 1105, 1625, 2125, 2509, 3281, 4825, 5525, 8125, 10625, 12545, 16405, 24125, 27625, 42653, 62725, 82025, 120625, 138125, 213265, 313625, 410125, 1066325, 1568125, 2050625, 5331625, 26658125]

約数ペア:

[(1, 26658125), (5, 5331625), (13, 2050625), (17, 1568125), (25, 1066325), (65, 410125), (85, 313625), (125, 213265), (193, 138125), (221, 120625), (325, 82025), (425, 62725), (625, 42653), (965, 27625), (1105, 24125), (1625, 16405), (2125, 12545), (2509, 10625), (3281, 8125), (4825, 5525)]