216888980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140837}}^1$

素因数の和:140864

約数の個数: 48

約数和(自身を含む): 567858816

約数和(自身を除く): 350969836

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 140837, 281674, 563348, 704185, 985859, 1408370, 1549207, 1971718, 2816740, 3098414, 3943436, 4929295, 6196828, 7746035, 9858590, 10844449, 15492070, 19717180, 21688898, 30984140, 43377796, 54222245, 108444490, 216888980]

約数ペア:

[(1, 216888980), (2, 108444490), (4, 54222245), (5, 43377796), (7, 30984140), (10, 21688898), (11, 19717180), (14, 15492070), (20, 10844449), (22, 9858590), (28, 7746035), (35, 6196828), (44, 4929295), (55, 3943436), (70, 3098414), (77, 2816740), (110, 1971718), (140, 1549207), (154, 1408370), (220, 985859), (308, 704185), (385, 563348), (770, 281674), (1540, 140837)]