20089875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{317}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 36313056

約数和(自身を除く): 16223181

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 169, 195, 317, 325, 375, 507, 845, 951, 975, 1585, 1625, 2535, 4121, 4225, 4755, 4875, 7925, 12363, 12675, 20605, 21125, 23775, 39625, 53573, 61815, 63375, 103025, 118875, 160719, 267865, 309075, 515125, 803595, 1339325, 1545375, 4017975, 6696625, 20089875]

約数ペア:

[(1, 20089875), (3, 6696625), (5, 4017975), (13, 1545375), (15, 1339325), (25, 803595), (39, 515125), (65, 309075), (75, 267865), (125, 160719), (169, 118875), (195, 103025), (317, 63375), (325, 61815), (375, 53573), (507, 39625), (845, 23775), (951, 21125), (975, 20605), (1585, 12675), (1625, 12363), (2535, 7925), (4121, 4875), (4225, 4755)]