18905490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2659}}^1$

素因数の和:2751

約数の個数: 48

約数和(自身を含む): 49795200

約数和(自身を除く): 30889710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2659, 3555, 5318, 7110, 7977, 13295, 15954, 23931, 26590, 39885, 47862, 79770, 119655, 210061, 239310, 420122, 630183, 1050305, 1260366, 1890549, 2100610, 3150915, 3781098, 6301830, 9452745, 18905490]

約数ペア:

[(1, 18905490), (2, 9452745), (3, 6301830), (5, 3781098), (6, 3150915), (9, 2100610), (10, 1890549), (15, 1260366), (18, 1050305), (30, 630183), (45, 420122), (79, 239310), (90, 210061), (158, 119655), (237, 79770), (395, 47862), (474, 39885), (711, 26590), (790, 23931), (1185, 15954), (1422, 13295), (2370, 7977), (2659, 7110), (3555, 5318)]