64248400

素因数分解:

$2^4\times 5^2\times {\mathrm{160621}}^1$

素因数の和:160639

約数の個数: 30

約数和(自身を含む): 154357742

約数和(自身を除く): 90109342

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 160621, 321242, 642484, 803105, 1284968, 1606210, 2569936, 3212420, 4015525, 6424840, 8031050, 12849680, 16062100, 32124200, 64248400]

約数ペア:

[(1, 64248400), (2, 32124200), (4, 16062100), (5, 12849680), (8, 8031050), (10, 6424840), (16, 4015525), (20, 3212420), (25, 2569936), (40, 1606210), (50, 1284968), (80, 803105), (100, 642484), (200, 321242), (400, 160621)]