28294540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9011}}^1$

素因数の和:9177

約数の個数: 24

約数和(自身を含む): 59803632

約数和(自身を除く): 31509092

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 9011, 18022, 36044, 45055, 90110, 180220, 1414727, 2829454, 5658908, 7073635, 14147270, 28294540]

約数ペア:

[(1, 28294540), (2, 14147270), (4, 7073635), (5, 5658908), (10, 2829454), (20, 1414727), (157, 180220), (314, 90110), (628, 45055), (785, 36044), (1570, 18022), (3140, 9011)]