285405140

素因数分解:

$2^2\times 5^1\times {\mathrm{701}}^1\times {\mathrm{20357}}^1$

素因数の和:21067

約数の個数: 24

約数和(自身を含む): 600235272

約数和(自身を除く): 314830132

約数列:

[1, 2, 4, 5, 10, 20, 701, 1402, 2804, 3505, 7010, 14020, 20357, 40714, 81428, 101785, 203570, 407140, 14270257, 28540514, 57081028, 71351285, 142702570, 285405140]

約数ペア:

[(1, 285405140), (2, 142702570), (4, 71351285), (5, 57081028), (10, 28540514), (20, 14270257), (701, 407140), (1402, 203570), (2804, 101785), (3505, 81428), (7010, 40714), (14020, 20357)]