28949984

素因数分解:

$2^5\times 7^2\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:560

約数の個数: 72

約数和(自身を含む): 68229000

約数和(自身を除く): 39279016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 74, 98, 112, 148, 196, 224, 259, 296, 392, 499, 518, 592, 784, 998, 1036, 1184, 1568, 1813, 1996, 2072, 3493, 3626, 3992, 4144, 6986, 7252, 7984, 8288, 13972, 14504, 15968, 18463, 24451, 27944, 29008, 36926, 48902, 55888, 58016, 73852, 97804, 111776, 129241, 147704, 195608, 258482, 295408, 391216, 516964, 590816, 782432, 904687, 1033928, 1809374, 2067856, 3618748, 4135712, 7237496, 14474992, 28949984]

約数ペア:

[(1, 28949984), (2, 14474992), (4, 7237496), (7, 4135712), (8, 3618748), (14, 2067856), (16, 1809374), (28, 1033928), (32, 904687), (37, 782432), (49, 590816), (56, 516964), (74, 391216), (98, 295408), (112, 258482), (148, 195608), (196, 147704), (224, 129241), (259, 111776), (296, 97804), (392, 73852), (499, 58016), (518, 55888), (592, 48902), (784, 36926), (998, 29008), (1036, 27944), (1184, 24451), (1568, 18463), (1813, 15968), (1996, 14504), (2072, 13972), (3493, 8288), (3626, 7984), (3992, 7252), (4144, 6986)]