1396280

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 3194640

約数和(自身を除く): 1798360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 521, 536, 670, 1042, 1340, 2084, 2605, 2680, 4168, 5210, 10420, 20840, 34907, 69814, 139628, 174535, 279256, 349070, 698140, 1396280]

約数ペア:

[(1, 1396280), (2, 698140), (4, 349070), (5, 279256), (8, 174535), (10, 139628), (20, 69814), (40, 34907), (67, 20840), (134, 10420), (268, 5210), (335, 4168), (521, 2680), (536, 2605), (670, 2084), (1042, 1340)]