128865420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{715919}}^1$

素因数の和:715934

約数の個数: 36

約数和(自身を含む): 390892320

約数和(自身を除く): 262026900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 715919, 1431838, 2147757, 2863676, 3579595, 4295514, 6443271, 7159190, 8591028, 10738785, 12886542, 14318380, 21477570, 25773084, 32216355, 42955140, 64432710, 128865420]

約数ペア:

[(1, 128865420), (2, 64432710), (3, 42955140), (4, 32216355), (5, 25773084), (6, 21477570), (9, 14318380), (10, 12886542), (12, 10738785), (15, 8591028), (18, 7159190), (20, 6443271), (30, 4295514), (36, 3579595), (45, 2863676), (60, 2147757), (90, 1431838), (180, 715919)]