78798275

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{317}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 100236144

約数和(自身を除く): 21437869

約数列:

[1, 5, 25, 61, 163, 305, 317, 815, 1525, 1585, 4075, 7925, 9943, 19337, 49715, 51671, 96685, 248575, 258355, 483425, 1291775, 3151931, 15759655, 78798275]

約数ペア:

[(1, 78798275), (5, 15759655), (25, 3151931), (61, 1291775), (163, 483425), (305, 258355), (317, 248575), (815, 96685), (1525, 51671), (1585, 49715), (4075, 19337), (7925, 9943)]