89991920

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{13553}}^1$

素因数の和:13649

約数の個数: 40

約数和(自身を含む): 211767696

約数和(自身を除く): 121775776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 13553, 27106, 54212, 67765, 108424, 135530, 216848, 271060, 542120, 1084240, 1124899, 2249798, 4499596, 5624495, 8999192, 11248990, 17998384, 22497980, 44995960, 89991920]

約数ペア:

[(1, 89991920), (2, 44995960), (4, 22497980), (5, 17998384), (8, 11248990), (10, 8999192), (16, 5624495), (20, 4499596), (40, 2249798), (80, 1124899), (83, 1084240), (166, 542120), (332, 271060), (415, 216848), (664, 135530), (830, 108424), (1328, 67765), (1660, 54212), (3320, 27106), (6640, 13553)]