20496890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1787}}^1$

素因数の和:1862

約数の個数: 32

約数和(自身を含む): 39135744

約数和(自身を除く): 18638854

約数列:

[1, 2, 5, 10, 31, 37, 62, 74, 155, 185, 310, 370, 1147, 1787, 2294, 3574, 5735, 8935, 11470, 17870, 55397, 66119, 110794, 132238, 276985, 330595, 553970, 661190, 2049689, 4099378, 10248445, 20496890]

約数ペア:

[(1, 20496890), (2, 10248445), (5, 4099378), (10, 2049689), (31, 661190), (37, 553970), (62, 330595), (74, 276985), (155, 132238), (185, 110794), (310, 66119), (370, 55397), (1147, 17870), (1787, 11470), (2294, 8935), (3574, 5735)]