80454640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{143669}}^1$

素因数の和:143689

約数の個数: 40

約数和(自身を含む): 213780960

約数和(自身を除く): 133326320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 143669, 287338, 574676, 718345, 1005683, 1149352, 1436690, 2011366, 2298704, 2873380, 4022732, 5028415, 5746760, 8045464, 10056830, 11493520, 16090928, 20113660, 40227320, 80454640]

約数ペア:

[(1, 80454640), (2, 40227320), (4, 20113660), (5, 16090928), (7, 11493520), (8, 10056830), (10, 8045464), (14, 5746760), (16, 5028415), (20, 4022732), (28, 2873380), (35, 2298704), (40, 2011366), (56, 1436690), (70, 1149352), (80, 1005683), (112, 718345), (140, 574676), (280, 287338), (560, 143669)]