845380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1035

約数の個数: 24

約数和(自身を含む): 1818432

約数和(自身を除く): 973052

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 983, 1966, 3932, 4915, 9830, 19660, 42269, 84538, 169076, 211345, 422690, 845380]

約数ペア:

[(1, 845380), (2, 422690), (4, 211345), (5, 169076), (10, 84538), (20, 42269), (43, 19660), (86, 9830), (172, 4915), (215, 3932), (430, 1966), (860, 983)]