129401420

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{32843}}^1$

素因数の和:33049

約数の個数: 24

約数和(自身を含む): 273130704

約数和(自身を除く): 143729284

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 32843, 65686, 131372, 164215, 328430, 656860, 6470071, 12940142, 25880284, 32350355, 64700710, 129401420]

約数ペア:

[(1, 129401420), (2, 64700710), (4, 32350355), (5, 25880284), (10, 12940142), (20, 6470071), (197, 656860), (394, 328430), (788, 164215), (985, 131372), (1970, 65686), (3940, 32843)]