142021520

素因数分解:

$2^4\times 5^1\times {\mathrm{1775269}}^1$

素因数の和:1775282

約数の個数: 20

約数和(自身を含む): 330200220

約数和(自身を除く): 188178700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1775269, 3550538, 7101076, 8876345, 14202152, 17752690, 28404304, 35505380, 71010760, 142021520]

約数ペア:

[(1, 142021520), (2, 71010760), (4, 35505380), (5, 28404304), (8, 17752690), (10, 14202152), (16, 8876345), (20, 7101076), (40, 3550538), (80, 1775269)]