129908200

素因数分解:

$2^3\times 5^2\times {\mathrm{649541}}^1$

素因数の和:649557

約数の個数: 24

約数和(自身を含む): 302037030

約数和(自身を除く): 172128830

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 649541, 1299082, 2598164, 3247705, 5196328, 6495410, 12990820, 16238525, 25981640, 32477050, 64954100, 129908200]

約数ペア:

[(1, 129908200), (2, 64954100), (4, 32477050), (5, 25981640), (8, 16238525), (10, 12990820), (20, 6495410), (25, 5196328), (40, 3247705), (50, 2598164), (100, 1299082), (200, 649541)]