13200280

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{997}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 29820240

約数和(自身を除く): 16619960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 997, 1324, 1655, 1994, 2648, 3310, 3988, 4985, 6620, 7976, 9970, 13240, 19940, 39880, 330007, 660014, 1320028, 1650035, 2640056, 3300070, 6600140, 13200280]

約数ペア:

[(1, 13200280), (2, 6600140), (4, 3300070), (5, 2640056), (8, 1650035), (10, 1320028), (20, 660014), (40, 330007), (331, 39880), (662, 19940), (997, 13240), (1324, 9970), (1655, 7976), (1994, 6620), (2648, 4985), (3310, 3988)]