389631290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{4871}}^1$

素因数の和:5318

約数の個数: 32

約数和(自身を含む): 740154240

約数和(自身を除く): 350522950

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 421, 842, 2105, 4210, 4871, 7999, 9742, 15998, 24355, 39995, 48710, 79990, 92549, 185098, 462745, 925490, 2050691, 4101382, 10253455, 20506910, 38963129, 77926258, 194815645, 389631290]

約数ペア:

[(1, 389631290), (2, 194815645), (5, 77926258), (10, 38963129), (19, 20506910), (38, 10253455), (95, 4101382), (190, 2050691), (421, 925490), (842, 462745), (2105, 185098), (4210, 92549), (4871, 79990), (7999, 48710), (9742, 39995), (15998, 24355)]