64640225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1931}}^1$

素因数の和:2057

約数の個数: 24

約数和(自身を含む): 87202752

約数和(自身を除く): 22562527

約数列:

[1, 5, 13, 25, 65, 103, 325, 515, 1339, 1931, 2575, 6695, 9655, 25103, 33475, 48275, 125515, 198893, 627575, 994465, 2585609, 4972325, 12928045, 64640225]

約数ペア:

[(1, 64640225), (5, 12928045), (13, 4972325), (25, 2585609), (65, 994465), (103, 627575), (325, 198893), (515, 125515), (1339, 48275), (1931, 33475), (2575, 25103), (6695, 9655)]