251784815

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 326021760

約数和(自身を除く): 74236945

約数列:

[1, 5, 29, 37, 71, 145, 185, 355, 661, 1073, 2059, 2627, 3305, 5365, 10295, 13135, 19169, 24457, 46931, 76183, 95845, 122285, 234655, 380915, 709253, 1360999, 1736447, 3546265, 6804995, 8682235, 50356963, 251784815]

約数ペア:

[(1, 251784815), (5, 50356963), (29, 8682235), (37, 6804995), (71, 3546265), (145, 1736447), (185, 1360999), (355, 709253), (661, 380915), (1073, 234655), (2059, 122285), (2627, 95845), (3305, 76183), (5365, 46931), (10295, 24457), (13135, 19169)]