19943640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55399}}^1$

素因数の和:55416

約数の個数: 48

約数和(自身を含む): 64818000

約数和(自身を除く): 44874360

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, 55399, 110798, 166197, 221596, 276995, 332394, 443192, 498591, 553990, 664788, 830985, 997182, 1107980, 1329576, 1661970, 1994364, 2215960, 2492955, 3323940, 3988728, 4985910, 6647880, 9971820, 19943640]

約数ペア:

[(1, 19943640), (2, 9971820), (3, 6647880), (4, 4985910), (5, 3988728), (6, 3323940), (8, 2492955), (9, 2215960), (10, 1994364), (12, 1661970), (15, 1329576), (18, 1107980), (20, 997182), (24, 830985), (30, 664788), (36, 553990), (40, 498591), (45, 443192), (60, 332394), (72, 276995), (90, 221596), (120, 166197), (180, 110798), (360, 55399)]