261445870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{4073}}^1$

素因数の和:4225

約数の個数: 48

約数和(自身を含む): 551749968

約数和(自身を除く): 290304098

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 131, 245, 262, 490, 655, 917, 1310, 1834, 4073, 4585, 6419, 8146, 9170, 12838, 20365, 28511, 32095, 40730, 57022, 64190, 142555, 199577, 285110, 399154, 533563, 997885, 1067126, 1995770, 2667815, 3734941, 5335630, 7469882, 18674705, 26144587, 37349410, 52289174, 130722935, 261445870]

約数ペア:

[(1, 261445870), (2, 130722935), (5, 52289174), (7, 37349410), (10, 26144587), (14, 18674705), (35, 7469882), (49, 5335630), (70, 3734941), (98, 2667815), (131, 1995770), (245, 1067126), (262, 997885), (490, 533563), (655, 399154), (917, 285110), (1310, 199577), (1834, 142555), (4073, 64190), (4585, 57022), (6419, 40730), (8146, 32095), (9170, 28511), (12838, 20365)]