18722052

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 49795200

約数和(自身を除く): 31073148

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 79, 87, 116, 158, 174, 227, 237, 261, 316, 348, 454, 474, 522, 681, 711, 908, 948, 1044, 1362, 1422, 2043, 2291, 2724, 2844, 4086, 4582, 6583, 6873, 8172, 9164, 13166, 13746, 17933, 19749, 20619, 26332, 27492, 35866, 39498, 41238, 53799, 59247, 71732, 78996, 82476, 107598, 118494, 161397, 215196, 236988, 322794, 520057, 645588, 1040114, 1560171, 2080228, 3120342, 4680513, 6240684, 9361026, 18722052]

約数ペア:

[(1, 18722052), (2, 9361026), (3, 6240684), (4, 4680513), (6, 3120342), (9, 2080228), (12, 1560171), (18, 1040114), (29, 645588), (36, 520057), (58, 322794), (79, 236988), (87, 215196), (116, 161397), (158, 118494), (174, 107598), (227, 82476), (237, 78996), (261, 71732), (316, 59247), (348, 53799), (454, 41238), (474, 39498), (522, 35866), (681, 27492), (711, 26332), (908, 20619), (948, 19749), (1044, 17933), (1362, 13746), (1422, 13166), (2043, 9164), (2291, 8172), (2724, 6873), (2844, 6583), (4086, 4582)]