20820376

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{5279}}^1$

素因数の和:5331

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21947624

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 116, 136, 232, 493, 986, 1972, 3944, 5279, 10558, 21116, 42232, 89743, 153091, 179486, 306182, 358972, 612364, 717944, 1224728, 2602547, 5205094, 10410188, 20820376]

約数ペア:

[(1, 20820376), (2, 10410188), (4, 5205094), (8, 2602547), (17, 1224728), (29, 717944), (34, 612364), (58, 358972), (68, 306182), (116, 179486), (136, 153091), (232, 89743), (493, 42232), (986, 21116), (1972, 10558), (3944, 5279)]