28485268

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 62741952

約数和(自身を除く): 34256684

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 83, 98, 103, 119, 166, 196, 206, 238, 332, 412, 476, 581, 721, 833, 1162, 1411, 1442, 1666, 1751, 2324, 2822, 2884, 3332, 3502, 4067, 5047, 5644, 7004, 8134, 8549, 9877, 10094, 12257, 16268, 17098, 19754, 20188, 24514, 34196, 39508, 49028, 59843, 69139, 85799, 119686, 138278, 145333, 171598, 239372, 276556, 290666, 343196, 418901, 581332, 837802, 1017331, 1675604, 2034662, 4069324, 7121317, 14242634, 28485268]

約数ペア:

[(1, 28485268), (2, 14242634), (4, 7121317), (7, 4069324), (14, 2034662), (17, 1675604), (28, 1017331), (34, 837802), (49, 581332), (68, 418901), (83, 343196), (98, 290666), (103, 276556), (119, 239372), (166, 171598), (196, 145333), (206, 138278), (238, 119686), (332, 85799), (412, 69139), (476, 59843), (581, 49028), (721, 39508), (833, 34196), (1162, 24514), (1411, 20188), (1442, 19754), (1666, 17098), (1751, 16268), (2324, 12257), (2822, 10094), (2884, 9877), (3332, 8549), (3502, 8134), (4067, 7004), (5047, 5644)]