18469280

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1297}}^1$

素因数の和:1401

約数の個数: 48

約数和(自身を含む): 44157960

約数和(自身を除く): 25688680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1297, 1424, 1780, 2594, 2848, 3560, 5188, 6485, 7120, 10376, 12970, 14240, 20752, 25940, 41504, 51880, 103760, 115433, 207520, 230866, 461732, 577165, 923464, 1154330, 1846928, 2308660, 3693856, 4617320, 9234640, 18469280]

約数ペア:

[(1, 18469280), (2, 9234640), (4, 4617320), (5, 3693856), (8, 2308660), (10, 1846928), (16, 1154330), (20, 923464), (32, 577165), (40, 461732), (80, 230866), (89, 207520), (160, 115433), (178, 103760), (356, 51880), (445, 41504), (712, 25940), (890, 20752), (1297, 14240), (1424, 12970), (1780, 10376), (2594, 7120), (2848, 6485), (3560, 5188)]