19112680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4639}}^1$

素因数の和:4753

約数の個数: 32

約数和(自身を含む): 43430400

約数和(自身を除く): 24317720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4639, 9278, 18556, 23195, 37112, 46390, 92780, 185560, 477817, 955634, 1911268, 2389085, 3822536, 4778170, 9556340, 19112680]

約数ペア:

[(1, 19112680), (2, 9556340), (4, 4778170), (5, 3822536), (8, 2389085), (10, 1911268), (20, 955634), (40, 477817), (103, 185560), (206, 92780), (412, 46390), (515, 37112), (824, 23195), (1030, 18556), (2060, 9278), (4120, 4639)]