20395725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{733}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 39318912

約数和(自身を除く): 18923187

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 53, 75, 105, 159, 175, 265, 371, 525, 733, 795, 1113, 1325, 1855, 2199, 3665, 3975, 5131, 5565, 9275, 10995, 15393, 18325, 25655, 27825, 38849, 54975, 76965, 116547, 128275, 194245, 271943, 384825, 582735, 815829, 971225, 1359715, 2913675, 4079145, 6798575, 20395725]

約数ペア:

[(1, 20395725), (3, 6798575), (5, 4079145), (7, 2913675), (15, 1359715), (21, 971225), (25, 815829), (35, 582735), (53, 384825), (75, 271943), (105, 194245), (159, 128275), (175, 116547), (265, 76965), (371, 54975), (525, 38849), (733, 27825), (795, 25655), (1113, 18325), (1325, 15393), (1855, 10995), (2199, 9275), (3665, 5565), (3975, 5131)]