872510120

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{200117}}^1$

素因数の和:200237

約数の個数: 32

約数和(自身を含む): 1981168200

約数和(自身を除く): 1108658080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 200117, 400234, 800468, 1000585, 1600936, 2001170, 4002340, 8004680, 21812753, 43625506, 87251012, 109063765, 174502024, 218127530, 436255060, 872510120]

約数ペア:

[(1, 872510120), (2, 436255060), (4, 218127530), (5, 174502024), (8, 109063765), (10, 87251012), (20, 43625506), (40, 21812753), (109, 8004680), (218, 4002340), (436, 2001170), (545, 1600936), (872, 1000585), (1090, 800468), (2180, 400234), (4360, 200117)]