156988318420

素因数分解:

$2^2\times 5^1\times {\mathrm{438001}}^1\times {\mathrm{17921}}^1$

素因数の和:455931

約数の個数: 24

約数和(自身を含む): 329694617448

約数和(自身を除く): 172706299028

約数列:

[1, 2, 4, 5, 10, 20, 17921, 35842, 71684, 89605, 179210, 358420, 438001, 876002, 1752004, 2190005, 4380010, 8760020, 7849415921, 15698831842, 31397663684, 39247079605, 78494159210, 156988318420]

約数ペア:

[(1, 156988318420), (2, 78494159210), (4, 39247079605), (5, 31397663684), (10, 15698831842), (20, 7849415921), (17921, 8760020), (35842, 4380010), (71684, 2190005), (89605, 1752004), (179210, 876002), (358420, 438001)]