20666808

素因数分解:

$2^3\times 3^2\times {\mathrm{239}}^1\times {\mathrm{1201}}^1$

素因数の和:1452

約数の個数: 48

約数和(自身を含む): 56253600

約数和(自身を除く): 35586792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 239, 478, 717, 956, 1201, 1434, 1912, 2151, 2402, 2868, 3603, 4302, 4804, 5736, 7206, 8604, 9608, 10809, 14412, 17208, 21618, 28824, 43236, 86472, 287039, 574078, 861117, 1148156, 1722234, 2296312, 2583351, 3444468, 5166702, 6888936, 10333404, 20666808]

約数ペア:

[(1, 20666808), (2, 10333404), (3, 6888936), (4, 5166702), (6, 3444468), (8, 2583351), (9, 2296312), (12, 1722234), (18, 1148156), (24, 861117), (36, 574078), (72, 287039), (239, 86472), (478, 43236), (717, 28824), (956, 21618), (1201, 17208), (1434, 14412), (1912, 10809), (2151, 9608), (2402, 8604), (2868, 7206), (3603, 5736), (4302, 4804)]