12642800

素因数分解:

$2^4\times 5^2\times {\mathrm{31607}}^1$

素因数の和:31625

約数の個数: 30

約数和(自身を含む): 30375288

約数和(自身を除く): 17732488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31607, 63214, 126428, 158035, 252856, 316070, 505712, 632140, 790175, 1264280, 1580350, 2528560, 3160700, 6321400, 12642800]

約数ペア:

[(1, 12642800), (2, 6321400), (4, 3160700), (5, 2528560), (8, 1580350), (10, 1264280), (16, 790175), (20, 632140), (25, 505712), (40, 316070), (50, 252856), (80, 158035), (100, 126428), (200, 63214), (400, 31607)]