30404240

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{977}}^1$

素因数の和:1379

約数の個数: 40

約数和(自身を含む): 70944120

約数和(自身を除く): 40539880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 977, 1556, 1945, 1954, 3112, 3890, 3908, 4885, 6224, 7780, 7816, 9770, 15560, 15632, 19540, 31120, 39080, 78160, 380053, 760106, 1520212, 1900265, 3040424, 3800530, 6080848, 7601060, 15202120, 30404240]

約数ペア:

[(1, 30404240), (2, 15202120), (4, 7601060), (5, 6080848), (8, 3800530), (10, 3040424), (16, 1900265), (20, 1520212), (40, 760106), (80, 380053), (389, 78160), (778, 39080), (977, 31120), (1556, 19540), (1945, 15632), (1954, 15560), (3112, 9770), (3890, 7816), (3908, 7780), (4885, 6224)]