18538772

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 41260800

約数和(自身を除く): 22722028

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 58, 68, 79, 116, 119, 158, 203, 238, 289, 316, 406, 476, 493, 553, 578, 812, 986, 1106, 1156, 1343, 1972, 2023, 2212, 2291, 2686, 3451, 4046, 4582, 5372, 6902, 8092, 8381, 9164, 9401, 13804, 16037, 16762, 18802, 22831, 32074, 33524, 37604, 38947, 45662, 58667, 64148, 77894, 91324, 117334, 155788, 159817, 234668, 272629, 319634, 545258, 639268, 662099, 1090516, 1324198, 2648396, 4634693, 9269386, 18538772]

約数ペア:

[(1, 18538772), (2, 9269386), (4, 4634693), (7, 2648396), (14, 1324198), (17, 1090516), (28, 662099), (29, 639268), (34, 545258), (58, 319634), (68, 272629), (79, 234668), (116, 159817), (119, 155788), (158, 117334), (203, 91324), (238, 77894), (289, 64148), (316, 58667), (406, 45662), (476, 38947), (493, 37604), (553, 33524), (578, 32074), (812, 22831), (986, 18802), (1106, 16762), (1156, 16037), (1343, 13804), (1972, 9401), (2023, 9164), (2212, 8381), (2291, 8092), (2686, 6902), (3451, 5372), (4046, 4582)]