20462475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1459}}^1$

素因数の和:1500

約数の個数: 48

約数和(自身を含む): 39104640

約数和(自身を除く): 18642165

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 165, 187, 255, 275, 425, 561, 825, 935, 1275, 1459, 2805, 4377, 4675, 7295, 14025, 16049, 21885, 24803, 36475, 48147, 74409, 80245, 109425, 124015, 240735, 272833, 372045, 401225, 620075, 818499, 1203675, 1364165, 1860225, 4092495, 6820825, 20462475]

約数ペア:

[(1, 20462475), (3, 6820825), (5, 4092495), (11, 1860225), (15, 1364165), (17, 1203675), (25, 818499), (33, 620075), (51, 401225), (55, 372045), (75, 272833), (85, 240735), (165, 124015), (187, 109425), (255, 80245), (275, 74409), (425, 48147), (561, 36475), (825, 24803), (935, 21885), (1275, 16049), (1459, 14025), (2805, 7295), (4377, 4675)]