129025520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1279}}^1$

素因数の和:1402

約数の個数: 80

約数和(自身を含む): 326645760

約数和(自身を除く): 197620240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1279, 1552, 1940, 2522, 2558, 3880, 5044, 5116, 6305, 6395, 7760, 10088, 10232, 12610, 12790, 16627, 20176, 20464, 25220, 25580, 33254, 50440, 51160, 66508, 83135, 100880, 102320, 124063, 133016, 166270, 248126, 266032, 332540, 496252, 620315, 665080, 992504, 1240630, 1330160, 1612819, 1985008, 2481260, 3225638, 4962520, 6451276, 8064095, 9925040, 12902552, 16128190, 25805104, 32256380, 64512760, 129025520]

約数ペア:

[(1, 129025520), (2, 64512760), (4, 32256380), (5, 25805104), (8, 16128190), (10, 12902552), (13, 9925040), (16, 8064095), (20, 6451276), (26, 4962520), (40, 3225638), (52, 2481260), (65, 1985008), (80, 1612819), (97, 1330160), (104, 1240630), (130, 992504), (194, 665080), (208, 620315), (260, 496252), (388, 332540), (485, 266032), (520, 248126), (776, 166270), (970, 133016), (1040, 124063), (1261, 102320), (1279, 100880), (1552, 83135), (1940, 66508), (2522, 51160), (2558, 50440), (3880, 33254), (5044, 25580), (5116, 25220), (6305, 20464), (6395, 20176), (7760, 16627), (10088, 12790), (10232, 12610)]