64863289725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{821}}^1\times {\mathrm{81031}}^1$

素因数の和:81878

約数の個数: 48

約数和(自身を含む): 115632015744

約数和(自身を除く): 50768726019

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 821, 975, 2463, 4105, 10673, 12315, 20525, 32019, 53365, 61575, 81031, 160095, 243093, 266825, 405155, 800475, 1053403, 1215465, 2025775, 3160209, 5267015, 6077325, 15801045, 26335075, 66526451, 79005225, 199579353, 332632255, 864843863, 997896765, 1663161275, 2594531589, 4324219315, 4989483825, 12972657945, 21621096575, 64863289725]

約数ペア:

[(1, 64863289725), (3, 21621096575), (5, 12972657945), (13, 4989483825), (15, 4324219315), (25, 2594531589), (39, 1663161275), (65, 997896765), (75, 864843863), (195, 332632255), (325, 199579353), (821, 79005225), (975, 66526451), (2463, 26335075), (4105, 15801045), (10673, 6077325), (12315, 5267015), (20525, 3160209), (32019, 2025775), (53365, 1215465), (61575, 1053403), (81031, 800475), (160095, 405155), (243093, 266825)]