40806640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{72869}}^1$

素因数の和:72889

約数の個数: 40

約数和(自身を含む): 108430560

約数和(自身を除く): 67623920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 72869, 145738, 291476, 364345, 510083, 582952, 728690, 1020166, 1165904, 1457380, 2040332, 2550415, 2914760, 4080664, 5100830, 5829520, 8161328, 10201660, 20403320, 40806640]

約数ペア:

[(1, 40806640), (2, 20403320), (4, 10201660), (5, 8161328), (7, 5829520), (8, 5100830), (10, 4080664), (14, 2914760), (16, 2550415), (20, 2040332), (28, 1457380), (35, 1165904), (40, 1020166), (56, 728690), (70, 582952), (80, 510083), (112, 364345), (140, 291476), (280, 145738), (560, 72869)]