38712420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{499}}^1$

素因数の和:945

約数の個数: 72

約数和(自身を含む): 117936000

約数和(自身を除く): 79223580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 431, 499, 862, 998, 1293, 1497, 1724, 1996, 2155, 2495, 2586, 2994, 3879, 4310, 4491, 4990, 5172, 5988, 6465, 7485, 7758, 8620, 8982, 9980, 12930, 14970, 15516, 17964, 19395, 22455, 25860, 29940, 38790, 44910, 77580, 89820, 215069, 430138, 645207, 860276, 1075345, 1290414, 1935621, 2150690, 2580828, 3226035, 3871242, 4301380, 6452070, 7742484, 9678105, 12904140, 19356210, 38712420]

約数ペア:

[(1, 38712420), (2, 19356210), (3, 12904140), (4, 9678105), (5, 7742484), (6, 6452070), (9, 4301380), (10, 3871242), (12, 3226035), (15, 2580828), (18, 2150690), (20, 1935621), (30, 1290414), (36, 1075345), (45, 860276), (60, 645207), (90, 430138), (180, 215069), (431, 89820), (499, 77580), (862, 44910), (998, 38790), (1293, 29940), (1497, 25860), (1724, 22455), (1996, 19395), (2155, 17964), (2495, 15516), (2586, 14970), (2994, 12930), (3879, 9980), (4310, 8982), (4491, 8620), (4990, 7758), (5172, 7485), (5988, 6465)]