861876290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{2731}}^1$

素因数の和:2919

約数の個数: 64

約数和(自身を含む): 1793940480

約数和(自身を除く): 932064190

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 151, 190, 209, 302, 418, 755, 1045, 1510, 1661, 2090, 2731, 2869, 3322, 5462, 5738, 8305, 13655, 14345, 16610, 27310, 28690, 30041, 31559, 51889, 60082, 63118, 103778, 150205, 157795, 259445, 300410, 315590, 412381, 518890, 570779, 824762, 1141558, 2061905, 2853895, 4123810, 4536191, 5707790, 7835239, 9072382, 15670478, 22680955, 39176195, 45361910, 78352390, 86187629, 172375258, 430938145, 861876290]

約数ペア:

[(1, 861876290), (2, 430938145), (5, 172375258), (10, 86187629), (11, 78352390), (19, 45361910), (22, 39176195), (38, 22680955), (55, 15670478), (95, 9072382), (110, 7835239), (151, 5707790), (190, 4536191), (209, 4123810), (302, 2853895), (418, 2061905), (755, 1141558), (1045, 824762), (1510, 570779), (1661, 518890), (2090, 412381), (2731, 315590), (2869, 300410), (3322, 259445), (5462, 157795), (5738, 150205), (8305, 103778), (13655, 63118), (14345, 60082), (16610, 51889), (27310, 31559), (28690, 30041)]