129903880

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{18143}}^1$

素因数の和:18333

約数の個数: 32

約数和(自身を含む): 293932800

約数和(自身を除く): 164028920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 18143, 36286, 72572, 90715, 145144, 181430, 362860, 725720, 3247597, 6495194, 12990388, 16237985, 25980776, 32475970, 64951940, 129903880]

約数ペア:

[(1, 129903880), (2, 64951940), (4, 32475970), (5, 25980776), (8, 16237985), (10, 12990388), (20, 6495194), (40, 3247597), (179, 725720), (358, 362860), (716, 181430), (895, 145144), (1432, 90715), (1790, 72572), (3580, 36286), (7160, 18143)]