20728968

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 58531200

約数和(自身を除く): 37802232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 29, 39, 52, 58, 78, 79, 87, 104, 116, 156, 158, 174, 232, 237, 312, 316, 348, 377, 474, 632, 696, 754, 841, 948, 1027, 1131, 1508, 1682, 1896, 2054, 2262, 2291, 2523, 3016, 3081, 3364, 4108, 4524, 4582, 5046, 6162, 6728, 6873, 8216, 9048, 9164, 10092, 10933, 12324, 13746, 18328, 20184, 21866, 24648, 27492, 29783, 32799, 43732, 54984, 59566, 65598, 66439, 87464, 89349, 119132, 131196, 132878, 178698, 199317, 238264, 262392, 265756, 357396, 398634, 531512, 714792, 797268, 863707, 1594536, 1727414, 2591121, 3454828, 5182242, 6909656, 10364484, 20728968]

約数ペア:

[(1, 20728968), (2, 10364484), (3, 6909656), (4, 5182242), (6, 3454828), (8, 2591121), (12, 1727414), (13, 1594536), (24, 863707), (26, 797268), (29, 714792), (39, 531512), (52, 398634), (58, 357396), (78, 265756), (79, 262392), (87, 238264), (104, 199317), (116, 178698), (156, 132878), (158, 131196), (174, 119132), (232, 89349), (237, 87464), (312, 66439), (316, 65598), (348, 59566), (377, 54984), (474, 43732), (632, 32799), (696, 29783), (754, 27492), (841, 24648), (948, 21866), (1027, 20184), (1131, 18328), (1508, 13746), (1682, 12324), (1896, 10933), (2054, 10092), (2262, 9164), (2291, 9048), (2523, 8216), (3016, 6873), (3081, 6728), (3364, 6162), (4108, 5046), (4524, 4582)]