81899132

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 180516000

約数和(自身を除く): 98616868

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 58, 68, 116, 119, 203, 238, 289, 349, 406, 476, 493, 578, 698, 812, 986, 1156, 1396, 1972, 2023, 2443, 3451, 4046, 4886, 5933, 6902, 8092, 8381, 9772, 10121, 11866, 13804, 16762, 20242, 23732, 33524, 40484, 41531, 58667, 70847, 83062, 100861, 117334, 141694, 166124, 172057, 201722, 234668, 283388, 344114, 403444, 688228, 706027, 1204399, 1412054, 2408798, 2824108, 2924969, 4817596, 5849938, 11699876, 20474783, 40949566, 81899132]

約数ペア:

[(1, 81899132), (2, 40949566), (4, 20474783), (7, 11699876), (14, 5849938), (17, 4817596), (28, 2924969), (29, 2824108), (34, 2408798), (58, 1412054), (68, 1204399), (116, 706027), (119, 688228), (203, 403444), (238, 344114), (289, 283388), (349, 234668), (406, 201722), (476, 172057), (493, 166124), (578, 141694), (698, 117334), (812, 100861), (986, 83062), (1156, 70847), (1396, 58667), (1972, 41531), (2023, 40484), (2443, 33524), (3451, 23732), (4046, 20242), (4886, 16762), (5933, 13804), (6902, 11866), (8092, 10121), (8381, 9772)]