25560040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5281}}^1$

素因数の和:5314

約数の個数: 48

約数和(自身を含む): 63225540

約数和(自身を除く): 37665500

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 5281, 10562, 21124, 26405, 42248, 52810, 58091, 105620, 116182, 211240, 232364, 290455, 464728, 580910, 639001, 1161820, 1278002, 2323640, 2556004, 3195005, 5112008, 6390010, 12780020, 25560040]

約数ペア:

[(1, 25560040), (2, 12780020), (4, 6390010), (5, 5112008), (8, 3195005), (10, 2556004), (11, 2323640), (20, 1278002), (22, 1161820), (40, 639001), (44, 580910), (55, 464728), (88, 290455), (110, 232364), (121, 211240), (220, 116182), (242, 105620), (440, 58091), (484, 52810), (605, 42248), (968, 26405), (1210, 21124), (2420, 10562), (4840, 5281)]