20279090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3319}}^1$

素因数の和:3386

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 19879630

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3319, 6110, 6638, 16595, 33190, 43147, 86294, 155993, 215735, 311986, 431470, 779965, 1559930, 2027909, 4055818, 10139545, 20279090]

約数ペア:

[(1, 20279090), (2, 10139545), (5, 4055818), (10, 2027909), (13, 1559930), (26, 779965), (47, 431470), (65, 311986), (94, 215735), (130, 155993), (235, 86294), (470, 43147), (611, 33190), (1222, 16595), (3055, 6638), (3319, 6110)]