28784124

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 76440000

約数和(自身を除く): 47655876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 79, 87, 116, 158, 174, 237, 261, 316, 348, 349, 474, 522, 698, 711, 948, 1044, 1047, 1396, 1422, 2094, 2291, 2844, 3141, 4188, 4582, 6282, 6873, 9164, 10121, 12564, 13746, 20242, 20619, 27492, 27571, 30363, 40484, 41238, 55142, 60726, 82476, 82713, 91089, 110284, 121452, 165426, 182178, 248139, 330852, 364356, 496278, 799559, 992556, 1599118, 2398677, 3198236, 4797354, 7196031, 9594708, 14392062, 28784124]

約数ペア:

[(1, 28784124), (2, 14392062), (3, 9594708), (4, 7196031), (6, 4797354), (9, 3198236), (12, 2398677), (18, 1599118), (29, 992556), (36, 799559), (58, 496278), (79, 364356), (87, 330852), (116, 248139), (158, 182178), (174, 165426), (237, 121452), (261, 110284), (316, 91089), (348, 82713), (349, 82476), (474, 60726), (522, 55142), (698, 41238), (711, 40484), (948, 30363), (1044, 27571), (1047, 27492), (1396, 20619), (1422, 20242), (2094, 13746), (2291, 12564), (2844, 10121), (3141, 9164), (4188, 6873), (4582, 6282)]