19739880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54833}}^1$

素因数の和:54850

約数の個数: 48

約数和(自身を含む): 64155780

約数和(自身を除く): 44415900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54833, 109666, 164499, 219332, 274165, 328998, 438664, 493497, 548330, 657996, 822495, 986994, 1096660, 1315992, 1644990, 1973988, 2193320, 2467485, 3289980, 3947976, 4934970, 6579960, 9869940, 19739880]

約数ペア:

[(1, 19739880), (2, 9869940), (3, 6579960), (4, 4934970), (5, 3947976), (6, 3289980), (8, 2467485), (9, 2193320), (10, 1973988), (12, 1644990), (15, 1315992), (18, 1096660), (20, 986994), (24, 822495), (30, 657996), (36, 548330), (40, 493497), (45, 438664), (60, 328998), (72, 274165), (90, 219332), (120, 164499), (180, 109666), (360, 54833)]