42997640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{153563}}^1$

素因数の和:153581

約数の個数: 32

約数和(自身を含む): 110566080

約数和(自身を除く): 67568440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 153563, 307126, 614252, 767815, 1074941, 1228504, 1535630, 2149882, 3071260, 4299764, 5374705, 6142520, 8599528, 10749410, 21498820, 42997640]

約数ペア:

[(1, 42997640), (2, 21498820), (4, 10749410), (5, 8599528), (7, 6142520), (8, 5374705), (10, 4299764), (14, 3071260), (20, 2149882), (28, 1535630), (35, 1228504), (40, 1074941), (56, 767815), (70, 614252), (140, 307126), (280, 153563)]