89507120

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1129}}^1$

素因数の和:2133

約数の個数: 40

約数和(自身を含む): 208498560

約数和(自身を除く): 118991440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1129, 1982, 2258, 3964, 4516, 4955, 5645, 7928, 9032, 9910, 11290, 15856, 18064, 19820, 22580, 39640, 45160, 79280, 90320, 1118839, 2237678, 4475356, 5594195, 8950712, 11188390, 17901424, 22376780, 44753560, 89507120]

約数ペア:

[(1, 89507120), (2, 44753560), (4, 22376780), (5, 17901424), (8, 11188390), (10, 8950712), (16, 5594195), (20, 4475356), (40, 2237678), (80, 1118839), (991, 90320), (1129, 79280), (1982, 45160), (2258, 39640), (3964, 22580), (4516, 19820), (4955, 18064), (5645, 15856), (7928, 11290), (9032, 9910)]