20276490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51991}}^1$

素因数の和:52014

約数の個数: 32

約数和(自身を含む): 52407936

約数和(自身を除く): 32131446

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51991, 103982, 155973, 259955, 311946, 519910, 675883, 779865, 1351766, 1559730, 2027649, 3379415, 4055298, 6758830, 10138245, 20276490]

約数ペア:

[(1, 20276490), (2, 10138245), (3, 6758830), (5, 4055298), (6, 3379415), (10, 2027649), (13, 1559730), (15, 1351766), (26, 779865), (30, 675883), (39, 519910), (65, 311946), (78, 259955), (130, 155973), (195, 103982), (390, 51991)]