278315440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{267611}}^1$

素因数の和:267637

約数の個数: 40

約数和(自身を含む): 696861648

約数和(自身を除く): 418546208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 267611, 535222, 1070444, 1338055, 2140888, 2676110, 3478943, 4281776, 5352220, 6957886, 10704440, 13915772, 17394715, 21408880, 27831544, 34789430, 55663088, 69578860, 139157720, 278315440]

約数ペア:

[(1, 278315440), (2, 139157720), (4, 69578860), (5, 55663088), (8, 34789430), (10, 27831544), (13, 21408880), (16, 17394715), (20, 13915772), (26, 10704440), (40, 6957886), (52, 5352220), (65, 4281776), (80, 3478943), (104, 2676110), (130, 2140888), (208, 1338055), (260, 1070444), (520, 535222), (1040, 267611)]