163935380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{409}}^2$

素因数の和:841

約数の個数: 54

約数和(自身を含む): 401452254

約数和(自身を除く): 237516874

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 409, 490, 818, 980, 1636, 2045, 2863, 4090, 5726, 8180, 11452, 14315, 20041, 28630, 40082, 57260, 80164, 100205, 167281, 200410, 334562, 400820, 669124, 836405, 1170967, 1672810, 2341934, 3345620, 4683868, 5854835, 8196769, 11709670, 16393538, 23419340, 32787076, 40983845, 81967690, 163935380]

約数ペア:

[(1, 163935380), (2, 81967690), (4, 40983845), (5, 32787076), (7, 23419340), (10, 16393538), (14, 11709670), (20, 8196769), (28, 5854835), (35, 4683868), (49, 3345620), (70, 2341934), (98, 1672810), (140, 1170967), (196, 836405), (245, 669124), (409, 400820), (490, 334562), (818, 200410), (980, 167281), (1636, 100205), (2045, 80164), (2863, 57260), (4090, 40082), (5726, 28630), (8180, 20041), (11452, 14315)]