1815156

素因数分解:

$2^2\times 3^3\times 7^5$

素因数の和:48

約数の個数: 72

約数和(自身を含む): 5490240

約数和(自身を除く): 3675084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 343, 378, 441, 588, 686, 756, 882, 1029, 1323, 1372, 1764, 2058, 2401, 2646, 3087, 4116, 4802, 5292, 6174, 7203, 9261, 9604, 12348, 14406, 16807, 18522, 21609, 28812, 33614, 37044, 43218, 50421, 64827, 67228, 86436, 100842, 129654, 151263, 201684, 259308, 302526, 453789, 605052, 907578, 1815156]

約数ペア:

[(1, 1815156), (2, 907578), (3, 605052), (4, 453789), (6, 302526), (7, 259308), (9, 201684), (12, 151263), (14, 129654), (18, 100842), (21, 86436), (27, 67228), (28, 64827), (36, 50421), (42, 43218), (49, 37044), (54, 33614), (63, 28812), (84, 21609), (98, 18522), (108, 16807), (126, 14406), (147, 12348), (189, 9604), (196, 9261), (252, 7203), (294, 6174), (343, 5292), (378, 4802), (441, 4116), (588, 3087), (686, 2646), (756, 2401), (882, 2058), (1029, 1764), (1323, 1372)]