13279780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21419}}^1$

素因数の和:21459

約数の個数: 24

約数和(自身を含む): 28788480

約数和(自身を除く): 15508700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21419, 42838, 85676, 107095, 214190, 428380, 663989, 1327978, 2655956, 3319945, 6639890, 13279780]

約数ペア:

[(1, 13279780), (2, 6639890), (4, 3319945), (5, 2655956), (10, 1327978), (20, 663989), (31, 428380), (62, 214190), (124, 107095), (155, 85676), (310, 42838), (620, 21419)]