129348400

素因数分解:

$2^4\times 5^2\times {\mathrm{323371}}^1$

素因数の和:323389

約数の個数: 30

約数和(自身を含む): 310760492

約数和(自身を除く): 181412092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 323371, 646742, 1293484, 1616855, 2586968, 3233710, 5173936, 6467420, 8084275, 12934840, 16168550, 25869680, 32337100, 64674200, 129348400]

約数ペア:

[(1, 129348400), (2, 64674200), (4, 32337100), (5, 25869680), (8, 16168550), (10, 12934840), (16, 8084275), (20, 6467420), (25, 5173936), (40, 3233710), (50, 2586968), (80, 1616855), (100, 1293484), (200, 646742), (400, 323371)]