26103580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 56770560

約数和(自身を除く): 30666980

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 127, 172, 215, 239, 254, 430, 478, 508, 635, 860, 956, 1195, 1270, 2390, 2540, 4780, 5461, 10277, 10922, 20554, 21844, 27305, 30353, 41108, 51385, 54610, 60706, 102770, 109220, 121412, 151765, 205540, 303530, 607060, 1305179, 2610358, 5220716, 6525895, 13051790, 26103580]

約数ペア:

[(1, 26103580), (2, 13051790), (4, 6525895), (5, 5220716), (10, 2610358), (20, 1305179), (43, 607060), (86, 303530), (127, 205540), (172, 151765), (215, 121412), (239, 109220), (254, 102770), (430, 60706), (478, 54610), (508, 51385), (635, 41108), (860, 30353), (956, 27305), (1195, 21844), (1270, 20554), (2390, 10922), (2540, 10277), (4780, 5461)]