423218140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{237763}}^1$

素因数の和:237861

約数の個数: 24

約数和(自身を含む): 898747920

約数和(自身を除く): 475529780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 237763, 475526, 951052, 1188815, 2377630, 4755260, 21160907, 42321814, 84643628, 105804535, 211609070, 423218140]

約数ペア:

[(1, 423218140), (2, 211609070), (4, 105804535), (5, 84643628), (10, 42321814), (20, 21160907), (89, 4755260), (178, 2377630), (356, 1188815), (445, 951052), (890, 475526), (1780, 237763)]