388611275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 566392320

約数和(自身を除く): 177781045

約数列:

[1, 5, 13, 19, 25, 47, 65, 95, 103, 169, 235, 247, 325, 475, 515, 611, 845, 893, 1175, 1235, 1339, 1957, 2575, 3055, 3211, 4225, 4465, 4841, 6175, 6695, 7943, 9785, 11609, 15275, 16055, 17407, 22325, 24205, 25441, 33475, 39715, 48925, 58045, 62933, 80275, 87035, 91979, 121025, 127205, 150917, 198575, 290225, 314665, 330733, 435175, 459895, 636025, 754585, 818129, 1195727, 1573325, 1653665, 2299475, 3772925, 4090645, 5978635, 8268325, 15544451, 20453225, 29893175, 77722255, 388611275]

約数ペア:

[(1, 388611275), (5, 77722255), (13, 29893175), (19, 20453225), (25, 15544451), (47, 8268325), (65, 5978635), (95, 4090645), (103, 3772925), (169, 2299475), (235, 1653665), (247, 1573325), (325, 1195727), (475, 818129), (515, 754585), (611, 636025), (845, 459895), (893, 435175), (1175, 330733), (1235, 314665), (1339, 290225), (1957, 198575), (2575, 150917), (3055, 127205), (3211, 121025), (4225, 91979), (4465, 87035), (4841, 80275), (6175, 62933), (6695, 58045), (7943, 48925), (9785, 39715), (11609, 33475), (15275, 25441), (16055, 24205), (17407, 22325)]