127289320

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{20269}}^1$

素因数の和:20437

約数の個数: 32

約数和(自身を含む): 288239400

約数和(自身を除く): 160950080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 20269, 40538, 81076, 101345, 162152, 202690, 405380, 810760, 3182233, 6364466, 12728932, 15911165, 25457864, 31822330, 63644660, 127289320]

約数ペア:

[(1, 127289320), (2, 63644660), (4, 31822330), (5, 25457864), (8, 15911165), (10, 12728932), (20, 6364466), (40, 3182233), (157, 810760), (314, 405380), (628, 202690), (785, 162152), (1256, 101345), (1570, 81076), (3140, 40538), (6280, 20269)]