90971440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1009}}^1$

素因数の和:1059

約数の個数: 120

約数和(自身を含む): 256992480

約数和(自身を除く): 166021040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 784, 805, 920, 980, 1009, 1127, 1288, 1610, 1840, 1960, 2018, 2254, 2576, 3220, 3920, 4036, 4508, 5045, 5635, 6440, 7063, 8072, 9016, 10090, 11270, 12880, 14126, 16144, 18032, 20180, 22540, 23207, 28252, 35315, 40360, 45080, 46414, 49441, 56504, 70630, 80720, 90160, 92828, 98882, 113008, 116035, 141260, 162449, 185656, 197764, 232070, 247205, 282520, 324898, 371312, 395528, 464140, 494410, 565040, 649796, 791056, 812245, 928280, 988820, 1137143, 1299592, 1624490, 1856560, 1977640, 2274286, 2599184, 3248980, 3955280, 4548572, 5685715, 6497960, 9097144, 11371430, 12995920, 18194288, 22742860, 45485720, 90971440]

約数ペア:

[(1, 90971440), (2, 45485720), (4, 22742860), (5, 18194288), (7, 12995920), (8, 11371430), (10, 9097144), (14, 6497960), (16, 5685715), (20, 4548572), (23, 3955280), (28, 3248980), (35, 2599184), (40, 2274286), (46, 1977640), (49, 1856560), (56, 1624490), (70, 1299592), (80, 1137143), (92, 988820), (98, 928280), (112, 812245), (115, 791056), (140, 649796), (161, 565040), (184, 494410), (196, 464140), (230, 395528), (245, 371312), (280, 324898), (322, 282520), (368, 247205), (392, 232070), (460, 197764), (490, 185656), (560, 162449), (644, 141260), (784, 116035), (805, 113008), (920, 98882), (980, 92828), (1009, 90160), (1127, 80720), (1288, 70630), (1610, 56504), (1840, 49441), (1960, 46414), (2018, 45080), (2254, 40360), (2576, 35315), (3220, 28252), (3920, 23207), (4036, 22540), (4508, 20180), (5045, 18032), (5635, 16144), (6440, 14126), (7063, 12880), (8072, 11270), (9016, 10090)]