18009920

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2447}}^1$

素因数の和:2487

約数の個数: 56

約数和(自身を含む): 44769024

約数和(自身を除く): 26759104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2447, 3680, 4894, 7360, 9788, 12235, 19576, 24470, 39152, 48940, 56281, 78304, 97880, 112562, 156608, 195760, 225124, 281405, 391520, 450248, 562810, 783040, 900496, 1125620, 1800992, 2251240, 3601984, 4502480, 9004960, 18009920]

約数ペア:

[(1, 18009920), (2, 9004960), (4, 4502480), (5, 3601984), (8, 2251240), (10, 1800992), (16, 1125620), (20, 900496), (23, 783040), (32, 562810), (40, 450248), (46, 391520), (64, 281405), (80, 225124), (92, 195760), (115, 156608), (160, 112562), (184, 97880), (230, 78304), (320, 56281), (368, 48940), (460, 39152), (736, 24470), (920, 19576), (1472, 12235), (1840, 9788), (2447, 7360), (3680, 4894)]