20197980172

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{983}}^1\times {\mathrm{7307}}^1$

素因数の和:8350

約数の個数: 48

約数和(自身を含む): 38256503040

約数和(自身を除く): 18058522868

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 983, 1406, 1966, 2812, 3932, 7307, 14614, 18677, 29228, 36371, 37354, 72742, 74708, 138833, 145484, 270359, 277666, 540718, 555332, 691049, 1081436, 1382098, 2764196, 5136821, 7182781, 10273642, 14365562, 20547284, 28731124, 136472839, 265762897, 272945678, 531525794, 545891356, 1063051588, 5049495043, 10098990086, 20197980172]

約数ペア:

[(1, 20197980172), (2, 10098990086), (4, 5049495043), (19, 1063051588), (37, 545891356), (38, 531525794), (74, 272945678), (76, 265762897), (148, 136472839), (703, 28731124), (983, 20547284), (1406, 14365562), (1966, 10273642), (2812, 7182781), (3932, 5136821), (7307, 2764196), (14614, 1382098), (18677, 1081436), (29228, 691049), (36371, 555332), (37354, 540718), (72742, 277666), (74708, 270359), (138833, 145484)]