20900016

素因数分解:

$2^4\times 3^2\times {\mathrm{145139}}^1$

素因数の和:145153

約数の個数: 30

約数和(自身を含む): 58491420

約数和(自身を除く): 37591404

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145139, 290278, 435417, 580556, 870834, 1161112, 1306251, 1741668, 2322224, 2612502, 3483336, 5225004, 6966672, 10450008, 20900016]

約数ペア:

[(1, 20900016), (2, 10450008), (3, 6966672), (4, 5225004), (6, 3483336), (8, 2612502), (9, 2322224), (12, 1741668), (16, 1306251), (18, 1161112), (24, 870834), (36, 580556), (48, 435417), (72, 290278), (144, 145139)]