127908040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245977}}^1$

素因数の和:246001

約数の個数: 32

約数和(自身を含む): 309932280

約数和(自身を除く): 182024240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 245977, 491954, 983908, 1229885, 1967816, 2459770, 3197701, 4919540, 6395402, 9839080, 12790804, 15988505, 25581608, 31977010, 63954020, 127908040]

約数ペア:

[(1, 127908040), (2, 63954020), (4, 31977010), (5, 25581608), (8, 15988505), (10, 12790804), (13, 9839080), (20, 6395402), (26, 4919540), (40, 3197701), (52, 2459770), (65, 1967816), (104, 1229885), (130, 983908), (260, 491954), (520, 245977)]