405251980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2894657}}^1$

素因数の和:2894673

約数の個数: 24

約数和(自身を含む): 972605088

約数和(自身を除く): 567353108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2894657, 5789314, 11578628, 14473285, 20262599, 28946570, 40525198, 57893140, 81050396, 101312995, 202625990, 405251980]

約数ペア:

[(1, 405251980), (2, 202625990), (4, 101312995), (5, 81050396), (7, 57893140), (10, 40525198), (14, 28946570), (20, 20262599), (28, 14473285), (35, 11578628), (70, 5789314), (140, 2894657)]