18772628

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 39580800

約数和(自身を除く): 20808172

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 61, 116, 122, 203, 244, 379, 406, 427, 758, 812, 854, 1516, 1708, 1769, 2653, 3538, 5306, 7076, 10612, 10991, 12383, 21982, 23119, 24766, 43964, 46238, 49532, 76937, 92476, 153874, 161833, 307748, 323666, 647332, 670451, 1340902, 2681804, 4693157, 9386314, 18772628]

約数ペア:

[(1, 18772628), (2, 9386314), (4, 4693157), (7, 2681804), (14, 1340902), (28, 670451), (29, 647332), (58, 323666), (61, 307748), (116, 161833), (122, 153874), (203, 92476), (244, 76937), (379, 49532), (406, 46238), (427, 43964), (758, 24766), (812, 23119), (854, 21982), (1516, 12383), (1708, 10991), (1769, 10612), (2653, 7076), (3538, 5306)]