8400040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1123}}^1$

素因数の和:1162

約数の個数: 64

約数和(自身を含む): 21850560

約数和(自身を除く): 13450520

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1123, 1496, 1870, 2246, 3740, 4492, 5615, 7480, 8984, 11230, 12353, 19091, 22460, 24706, 38182, 44920, 49412, 61765, 76364, 95455, 98824, 123530, 152728, 190910, 210001, 247060, 381820, 420002, 494120, 763640, 840004, 1050005, 1680008, 2100010, 4200020, 8400040]

約数ペア:

[(1, 8400040), (2, 4200020), (4, 2100010), (5, 1680008), (8, 1050005), (10, 840004), (11, 763640), (17, 494120), (20, 420002), (22, 381820), (34, 247060), (40, 210001), (44, 190910), (55, 152728), (68, 123530), (85, 98824), (88, 95455), (110, 76364), (136, 61765), (170, 49412), (187, 44920), (220, 38182), (340, 24706), (374, 22460), (440, 19091), (680, 12353), (748, 11230), (935, 8984), (1123, 7480), (1496, 5615), (1870, 4492), (2246, 3740)]