156930920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{24989}}^1$

素因数の和:25157

約数の個数: 32

約数和(自身を含む): 355357800

約数和(自身を除く): 198426880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 24989, 49978, 99956, 124945, 199912, 249890, 499780, 999560, 3923273, 7846546, 15693092, 19616365, 31386184, 39232730, 78465460, 156930920]

約数ペア:

[(1, 156930920), (2, 78465460), (4, 39232730), (5, 31386184), (8, 19616365), (10, 15693092), (20, 7846546), (40, 3923273), (157, 999560), (314, 499780), (628, 249890), (785, 199912), (1256, 124945), (1570, 99956), (3140, 49978), (6280, 24989)]