28745780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205327}}^1$

素因数の和:205343

約数の個数: 24

約数和(自身を含む): 68990208

約数和(自身を除く): 40244428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205327, 410654, 821308, 1026635, 1437289, 2053270, 2874578, 4106540, 5749156, 7186445, 14372890, 28745780]

約数ペア:

[(1, 28745780), (2, 14372890), (4, 7186445), (5, 5749156), (7, 4106540), (10, 2874578), (14, 2053270), (20, 1437289), (28, 1026635), (35, 821308), (70, 410654), (140, 205327)]