89132440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71881}}^1$

素因数の和:71923

約数の個数: 32

約数和(自身を含む): 207020160

約数和(自身を除く): 117887720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 71881, 143762, 287524, 359405, 575048, 718810, 1437620, 2228311, 2875240, 4456622, 8913244, 11141555, 17826488, 22283110, 44566220, 89132440]

約数ペア:

[(1, 89132440), (2, 44566220), (4, 22283110), (5, 17826488), (8, 11141555), (10, 8913244), (20, 4456622), (31, 2875240), (40, 2228311), (62, 1437620), (124, 718810), (155, 575048), (248, 359405), (310, 287524), (620, 143762), (1240, 71881)]