19543960

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1361}}^1$

素因数の和:1731

約数の個数: 32

約数和(自身を含む): 44128800

約数和(自身を除く): 24584840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1361, 1436, 1795, 2722, 2872, 3590, 5444, 6805, 7180, 10888, 13610, 14360, 27220, 54440, 488599, 977198, 1954396, 2442995, 3908792, 4885990, 9771980, 19543960]

約数ペア:

[(1, 19543960), (2, 9771980), (4, 4885990), (5, 3908792), (8, 2442995), (10, 1954396), (20, 977198), (40, 488599), (359, 54440), (718, 27220), (1361, 14360), (1436, 13610), (1795, 10888), (2722, 7180), (2872, 6805), (3590, 5444)]