28619780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204427}}^1$

素因数の和:204443

約数の個数: 24

約数和(自身を含む): 68687808

約数和(自身を除く): 40068028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204427, 408854, 817708, 1022135, 1430989, 2044270, 2861978, 4088540, 5723956, 7154945, 14309890, 28619780]

約数ペア:

[(1, 28619780), (2, 14309890), (4, 7154945), (5, 5723956), (7, 4088540), (10, 2861978), (14, 2044270), (20, 1430989), (28, 1022135), (35, 817708), (70, 408854), (140, 204427)]