138320980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{988007}}^1$

素因数の和:988023

約数の個数: 24

約数和(自身を含む): 331970688

約数和(自身を除く): 193649708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 988007, 1976014, 3952028, 4940035, 6916049, 9880070, 13832098, 19760140, 27664196, 34580245, 69160490, 138320980]

約数ペア:

[(1, 138320980), (2, 69160490), (4, 34580245), (5, 27664196), (7, 19760140), (10, 13832098), (14, 9880070), (20, 6916049), (28, 4940035), (35, 3952028), (70, 1976014), (140, 988007)]