20252375

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 48

約数和(自身を含む): 30209088

約数和(自身を除く): 9956713

約数列:

[1, 5, 11, 13, 25, 55, 65, 103, 121, 125, 143, 275, 325, 515, 605, 715, 1133, 1339, 1375, 1573, 1625, 2575, 3025, 3575, 5665, 6695, 7865, 12463, 12875, 14729, 15125, 17875, 28325, 33475, 39325, 62315, 73645, 141625, 162019, 167375, 196625, 311575, 368225, 810095, 1557875, 1841125, 4050475, 20252375]

約数ペア:

[(1, 20252375), (5, 4050475), (11, 1841125), (13, 1557875), (25, 810095), (55, 368225), (65, 311575), (103, 196625), (121, 167375), (125, 162019), (143, 141625), (275, 73645), (325, 62315), (515, 39325), (605, 33475), (715, 28325), (1133, 17875), (1339, 15125), (1375, 14729), (1573, 12875), (1625, 12463), (2575, 7865), (3025, 6695), (3575, 5665)]