638819995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{2693}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 884494080

約数和(自身を除く): 245674085

約数列:

[1, 5, 11, 19, 55, 95, 209, 227, 1045, 1135, 2497, 2693, 4313, 12485, 13465, 21565, 29623, 47443, 51167, 148115, 237215, 255835, 562837, 611311, 2814185, 3056555, 6724421, 11614909, 33622105, 58074545, 127763999, 638819995]

約数ペア:

[(1, 638819995), (5, 127763999), (11, 58074545), (19, 33622105), (55, 11614909), (95, 6724421), (209, 3056555), (227, 2814185), (1045, 611311), (1135, 562837), (2497, 255835), (2693, 237215), (4313, 148115), (12485, 51167), (13465, 47443), (21565, 29623)]