28143275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 37051200

約数和(自身を除く): 8907925

約数列:

[1, 5, 19, 25, 95, 179, 331, 475, 895, 1655, 3401, 4475, 6289, 8275, 17005, 31445, 59249, 85025, 157225, 296245, 1125731, 1481225, 5628655, 28143275]

約数ペア:

[(1, 28143275), (5, 5628655), (19, 1481225), (25, 1125731), (95, 296245), (179, 157225), (331, 85025), (475, 59249), (895, 31445), (1655, 17005), (3401, 8275), (4475, 6289)]