71780475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{887}}^1$

素因数の和:996

約数の個数: 48

約数和(自身を含む): 129491712

約数和(自身を除く): 57711237

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 83, 195, 249, 325, 415, 887, 975, 1079, 1245, 2075, 2661, 3237, 4435, 5395, 6225, 11531, 13305, 16185, 22175, 26975, 34593, 57655, 66525, 73621, 80925, 172965, 220863, 288275, 368105, 864825, 957073, 1104315, 1840525, 2871219, 4785365, 5521575, 14356095, 23926825, 71780475]

約数ペア:

[(1, 71780475), (3, 23926825), (5, 14356095), (13, 5521575), (15, 4785365), (25, 2871219), (39, 1840525), (65, 1104315), (75, 957073), (83, 864825), (195, 368105), (249, 288275), (325, 220863), (415, 172965), (887, 80925), (975, 73621), (1079, 66525), (1245, 57655), (2075, 34593), (2661, 26975), (3237, 22175), (4435, 16185), (5395, 13305), (6225, 11531)]