80688725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 115617600

約数和(自身を除く): 34928875

約数列:

[1, 5, 13, 19, 25, 65, 73, 95, 179, 247, 325, 365, 475, 895, 949, 1235, 1387, 1825, 2327, 3401, 4475, 4745, 6175, 6935, 11635, 13067, 17005, 18031, 23725, 34675, 44213, 58175, 65335, 85025, 90155, 169871, 221065, 248273, 326675, 450775, 849355, 1105325, 1241365, 3227549, 4246775, 6206825, 16137745, 80688725]

約数ペア:

[(1, 80688725), (5, 16137745), (13, 6206825), (19, 4246775), (25, 3227549), (65, 1241365), (73, 1105325), (95, 849355), (179, 450775), (247, 326675), (325, 248273), (365, 221065), (475, 169871), (895, 90155), (949, 85025), (1235, 65335), (1387, 58175), (1825, 44213), (2327, 34675), (3401, 23725), (4475, 18031), (4745, 17005), (6175, 13067), (6935, 11635)]