72405475

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{601}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 92563520

約数和(自身を除く): 20158045

約数列:

[1, 5, 25, 61, 79, 305, 395, 601, 1525, 1975, 3005, 4819, 15025, 24095, 36661, 47479, 120475, 183305, 237395, 916525, 1186975, 2896219, 14481095, 72405475]

約数ペア:

[(1, 72405475), (5, 14481095), (25, 2896219), (61, 1186975), (79, 916525), (305, 237395), (395, 183305), (601, 120475), (1525, 47479), (1975, 36661), (3005, 24095), (4819, 15025)]