25815400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9929}}^1$

素因数の和:9958

約数の個数: 48

約数和(自身を含む): 64644300

約数和(自身を除く): 38828900

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 9929, 19858, 39716, 49645, 79432, 99290, 129077, 198580, 248225, 258154, 397160, 496450, 516308, 645385, 992900, 1032616, 1290770, 1985800, 2581540, 3226925, 5163080, 6453850, 12907700, 25815400]

約数ペア:

[(1, 25815400), (2, 12907700), (4, 6453850), (5, 5163080), (8, 3226925), (10, 2581540), (13, 1985800), (20, 1290770), (25, 1032616), (26, 992900), (40, 645385), (50, 516308), (52, 496450), (65, 397160), (100, 258154), (104, 248225), (130, 198580), (200, 129077), (260, 99290), (325, 79432), (520, 49645), (650, 39716), (1300, 19858), (2600, 9929)]