19879528040

素因数分解:

$2^3\times 5^1\times {\mathrm{496988201}}^1$

素因数の和:496988212

約数の個数: 16

約数和(自身を含む): 44728938180

約数和(自身を除く): 24849410140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496988201, 993976402, 1987952804, 2484941005, 3975905608, 4969882010, 9939764020, 19879528040]

約数ペア:

[(1, 19879528040), (2, 9939764020), (4, 4969882010), (5, 3975905608), (8, 2484941005), (10, 1987952804), (20, 993976402), (40, 496988201)]