72205575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{719}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 129991680

約数和(自身を除く): 57786105

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 103, 195, 309, 325, 515, 719, 975, 1339, 1545, 2157, 2575, 3595, 4017, 6695, 7725, 9347, 10785, 17975, 20085, 28041, 33475, 46735, 53925, 74057, 100425, 140205, 222171, 233675, 370285, 701025, 962741, 1110855, 1851425, 2888223, 4813705, 5554275, 14441115, 24068525, 72205575]

約数ペア:

[(1, 72205575), (3, 24068525), (5, 14441115), (13, 5554275), (15, 4813705), (25, 2888223), (39, 1851425), (65, 1110855), (75, 962741), (103, 701025), (195, 370285), (309, 233675), (325, 222171), (515, 140205), (719, 100425), (975, 74057), (1339, 53925), (1545, 46735), (2157, 33475), (2575, 28041), (3595, 20085), (4017, 17975), (6695, 10785), (7725, 9347)]