40987580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66109}}^1$

素因数の和:66149

約数の個数: 24

約数和(自身を含む): 88851840

約数和(自身を除く): 47864260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 66109, 132218, 264436, 330545, 661090, 1322180, 2049379, 4098758, 8197516, 10246895, 20493790, 40987580]

約数ペア:

[(1, 40987580), (2, 20493790), (4, 10246895), (5, 8197516), (10, 4098758), (20, 2049379), (31, 1322180), (62, 661090), (124, 330545), (155, 264436), (310, 132218), (620, 66109)]