814890040

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{106661}}^1$

素因数の和:106863

約数の個数: 32

約数和(自身を含む): 1843119360

約数和(自身を除く): 1028229320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 106661, 213322, 426644, 533305, 853288, 1066610, 2133220, 4266440, 20372251, 40744502, 81489004, 101861255, 162978008, 203722510, 407445020, 814890040]

約数ペア:

[(1, 814890040), (2, 407445020), (4, 203722510), (5, 162978008), (8, 101861255), (10, 81489004), (20, 40744502), (40, 20372251), (191, 4266440), (382, 2133220), (764, 1066610), (955, 853288), (1528, 533305), (1910, 426644), (3820, 213322), (7640, 106661)]