20385372

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{937}}^1$

素因数の和:995

約数の個数: 72

約数和(自身を含む): 56887824

約数和(自身を除く): 36502452

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 147, 148, 196, 222, 259, 294, 444, 518, 588, 777, 937, 1036, 1554, 1813, 1874, 2811, 3108, 3626, 3748, 5439, 5622, 6559, 7252, 10878, 11244, 13118, 19677, 21756, 26236, 34669, 39354, 45913, 69338, 78708, 91826, 104007, 137739, 138676, 183652, 208014, 242683, 275478, 416028, 485366, 550956, 728049, 970732, 1456098, 1698781, 2912196, 3397562, 5096343, 6795124, 10192686, 20385372]

約数ペア:

[(1, 20385372), (2, 10192686), (3, 6795124), (4, 5096343), (6, 3397562), (7, 2912196), (12, 1698781), (14, 1456098), (21, 970732), (28, 728049), (37, 550956), (42, 485366), (49, 416028), (74, 275478), (84, 242683), (98, 208014), (111, 183652), (147, 138676), (148, 137739), (196, 104007), (222, 91826), (259, 78708), (294, 69338), (444, 45913), (518, 39354), (588, 34669), (777, 26236), (937, 21756), (1036, 19677), (1554, 13118), (1813, 11244), (1874, 10878), (2811, 7252), (3108, 6559), (3626, 5622), (3748, 5439)]