20506045

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 9042755

約数列:

[1, 5, 7, 29, 35, 89, 145, 203, 227, 445, 623, 1015, 1135, 1589, 2581, 3115, 6583, 7945, 12905, 18067, 20203, 32915, 46081, 90335, 101015, 141421, 230405, 585887, 707105, 2929435, 4101209, 20506045]

約数ペア:

[(1, 20506045), (5, 4101209), (7, 2929435), (29, 707105), (35, 585887), (89, 230405), (145, 141421), (203, 101015), (227, 90335), (445, 46081), (623, 32915), (1015, 20203), (1135, 18067), (1589, 12905), (2581, 7945), (3115, 6583)]