20673100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4219}}^1$

素因数の和:4247

約数の個数: 54

約数和(自身を含む): 52197180

約数和(自身を除く): 31524080

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4219, 4900, 8438, 16876, 21095, 29533, 42190, 59066, 84380, 105475, 118132, 147665, 206731, 210950, 295330, 413462, 421900, 590660, 738325, 826924, 1033655, 1476650, 2067310, 2953300, 4134620, 5168275, 10336550, 20673100]

約数ペア:

[(1, 20673100), (2, 10336550), (4, 5168275), (5, 4134620), (7, 2953300), (10, 2067310), (14, 1476650), (20, 1033655), (25, 826924), (28, 738325), (35, 590660), (49, 421900), (50, 413462), (70, 295330), (98, 210950), (100, 206731), (140, 147665), (175, 118132), (196, 105475), (245, 84380), (350, 59066), (490, 42190), (700, 29533), (980, 21095), (1225, 16876), (2450, 8438), (4219, 4900)]