25531280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18773}}^1$

素因数の和:18803

約数の個数: 40

約数和(自身を含む): 62855352

約数和(自身を除く): 37324072

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 18773, 37546, 75092, 93865, 150184, 187730, 300368, 319141, 375460, 638282, 750920, 1276564, 1501840, 1595705, 2553128, 3191410, 5106256, 6382820, 12765640, 25531280]

約数ペア:

[(1, 25531280), (2, 12765640), (4, 6382820), (5, 5106256), (8, 3191410), (10, 2553128), (16, 1595705), (17, 1501840), (20, 1276564), (34, 750920), (40, 638282), (68, 375460), (80, 319141), (85, 300368), (136, 187730), (170, 150184), (272, 93865), (340, 75092), (680, 37546), (1360, 18773)]