265706480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255487}}^1$

素因数の和:255513

約数の個数: 40

約数和(自身を含む): 665290752

約数和(自身を除く): 399584272

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 255487, 510974, 1021948, 1277435, 2043896, 2554870, 3321331, 4087792, 5109740, 6642662, 10219480, 13285324, 16606655, 20438960, 26570648, 33213310, 53141296, 66426620, 132853240, 265706480]

約数ペア:

[(1, 265706480), (2, 132853240), (4, 66426620), (5, 53141296), (8, 33213310), (10, 26570648), (13, 20438960), (16, 16606655), (20, 13285324), (26, 10219480), (40, 6642662), (52, 5109740), (65, 4087792), (80, 3321331), (104, 2554870), (130, 2043896), (208, 1277435), (260, 1021948), (520, 510974), (1040, 255487)]