214420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 459648

約数和(自身を除く): 245228

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 151, 284, 302, 355, 604, 710, 755, 1420, 1510, 3020, 10721, 21442, 42884, 53605, 107210, 214420]

約数ペア:

[(1, 214420), (2, 107210), (4, 53605), (5, 42884), (10, 21442), (20, 10721), (71, 3020), (142, 1510), (151, 1420), (284, 755), (302, 710), (355, 604)]