1989040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1$

素因数の和:106

約数の個数: 60

約数和(自身を含む): 4937184

約数和(自身を除く): 2948144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 47, 80, 92, 94, 115, 184, 188, 230, 235, 368, 376, 460, 470, 529, 752, 920, 940, 1058, 1081, 1840, 1880, 2116, 2162, 2645, 3760, 4232, 4324, 5290, 5405, 8464, 8648, 10580, 10810, 17296, 21160, 21620, 24863, 42320, 43240, 49726, 86480, 99452, 124315, 198904, 248630, 397808, 497260, 994520, 1989040]

約数ペア:

[(1, 1989040), (2, 994520), (4, 497260), (5, 397808), (8, 248630), (10, 198904), (16, 124315), (20, 99452), (23, 86480), (40, 49726), (46, 43240), (47, 42320), (80, 24863), (92, 21620), (94, 21160), (115, 17296), (184, 10810), (188, 10580), (230, 8648), (235, 8464), (368, 5405), (376, 5290), (460, 4324), (470, 4232), (529, 3760), (752, 2645), (920, 2162), (940, 2116), (1058, 1880), (1081, 1840)]