9899780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2647}}^1$

素因数の和:2684

約数の個数: 48

約数和(自身を含む): 24022656

約数和(自身を除く): 14122876

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 2647, 3740, 5294, 10588, 13235, 26470, 29117, 44999, 52940, 58234, 89998, 116468, 145585, 179996, 224995, 291170, 449990, 494989, 582340, 899980, 989978, 1979956, 2474945, 4949890, 9899780]

約数ペア:

[(1, 9899780), (2, 4949890), (4, 2474945), (5, 1979956), (10, 989978), (11, 899980), (17, 582340), (20, 494989), (22, 449990), (34, 291170), (44, 224995), (55, 179996), (68, 145585), (85, 116468), (110, 89998), (170, 58234), (187, 52940), (220, 44999), (340, 29117), (374, 26470), (748, 13235), (935, 10588), (1870, 5294), (2647, 3740)]