128528638

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{3557}}^1$

素因数の和:3684

約数の個数: 32

約数和(自身を含む): 230558400

約数和(自身を除く): 102029762

約数列:

[1, 2, 7, 14, 29, 58, 89, 178, 203, 406, 623, 1246, 2581, 3557, 5162, 7114, 18067, 24899, 36134, 49798, 103153, 206306, 316573, 633146, 722071, 1444142, 2216011, 4432022, 9180617, 18361234, 64264319, 128528638]

約数ペア:

[(1, 128528638), (2, 64264319), (7, 18361234), (14, 9180617), (29, 4432022), (58, 2216011), (89, 1444142), (178, 722071), (203, 633146), (406, 316573), (623, 206306), (1246, 103153), (2581, 49798), (3557, 36134), (5162, 24899), (7114, 18067)]