20521230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4993}}^1$

素因数の和:5140

約数の個数: 32

約数和(自身を含む): 49620384

約数和(自身を除く): 29099154

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 137, 274, 411, 685, 822, 1370, 2055, 4110, 4993, 9986, 14979, 24965, 29958, 49930, 74895, 149790, 684041, 1368082, 2052123, 3420205, 4104246, 6840410, 10260615, 20521230]

約数ペア:

[(1, 20521230), (2, 10260615), (3, 6840410), (5, 4104246), (6, 3420205), (10, 2052123), (15, 1368082), (30, 684041), (137, 149790), (274, 74895), (411, 49930), (685, 29958), (822, 24965), (1370, 14979), (2055, 9986), (4110, 4993)]