20124440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1753}}^1$

素因数の和:1812

約数の個数: 64

約数和(自身を含む): 53040960

約数和(自身を除く): 32916520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 1753, 2296, 2870, 3506, 5740, 7012, 8765, 11480, 12271, 14024, 17530, 24542, 35060, 49084, 61355, 70120, 71873, 98168, 122710, 143746, 245420, 287492, 359365, 490840, 503111, 574984, 718730, 1006222, 1437460, 2012444, 2515555, 2874920, 4024888, 5031110, 10062220, 20124440]

約数ペア:

[(1, 20124440), (2, 10062220), (4, 5031110), (5, 4024888), (7, 2874920), (8, 2515555), (10, 2012444), (14, 1437460), (20, 1006222), (28, 718730), (35, 574984), (40, 503111), (41, 490840), (56, 359365), (70, 287492), (82, 245420), (140, 143746), (164, 122710), (205, 98168), (280, 71873), (287, 70120), (328, 61355), (410, 49084), (574, 35060), (820, 24542), (1148, 17530), (1435, 14024), (1640, 12271), (1753, 11480), (2296, 8765), (2870, 7012), (3506, 5740)]