18236428

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 40219200

約数和(自身を除く): 21982772

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 59, 76, 83, 98, 118, 133, 166, 196, 236, 266, 332, 413, 532, 581, 826, 931, 1121, 1162, 1577, 1652, 1862, 2242, 2324, 2891, 3154, 3724, 4067, 4484, 4897, 5782, 6308, 7847, 8134, 9794, 11039, 11564, 15694, 16268, 19588, 22078, 31388, 34279, 44156, 54929, 68558, 77273, 93043, 109858, 137116, 154546, 186086, 219716, 239953, 309092, 372172, 479906, 651301, 959812, 1302602, 2605204, 4559107, 9118214, 18236428]

約数ペア:

[(1, 18236428), (2, 9118214), (4, 4559107), (7, 2605204), (14, 1302602), (19, 959812), (28, 651301), (38, 479906), (49, 372172), (59, 309092), (76, 239953), (83, 219716), (98, 186086), (118, 154546), (133, 137116), (166, 109858), (196, 93043), (236, 77273), (266, 68558), (332, 54929), (413, 44156), (532, 34279), (581, 31388), (826, 22078), (931, 19588), (1121, 16268), (1162, 15694), (1577, 11564), (1652, 11039), (1862, 9794), (2242, 8134), (2324, 7847), (2891, 6308), (3154, 5782), (3724, 4897), (4067, 4484)]