19819960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29147}}^1$

素因数の和:29175

約数の個数: 32

約数和(自身を含む): 47219760

約数和(自身を除く): 27399800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29147, 58294, 116588, 145735, 233176, 291470, 495499, 582940, 990998, 1165880, 1981996, 2477495, 3963992, 4954990, 9909980, 19819960]

約数ペア:

[(1, 19819960), (2, 9909980), (4, 4954990), (5, 3963992), (8, 2477495), (10, 1981996), (17, 1165880), (20, 990998), (34, 582940), (40, 495499), (68, 291470), (85, 233176), (136, 145735), (170, 116588), (340, 58294), (680, 29147)]