12455780

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1601}}^1$

素因数の和:1999

約数の個数: 24

約数和(自身を含む): 26240760

約数和(自身を除く): 13784980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1601, 1945, 3202, 3890, 6404, 7780, 8005, 16010, 32020, 622789, 1245578, 2491156, 3113945, 6227890, 12455780]

約数ペア:

[(1, 12455780), (2, 6227890), (4, 3113945), (5, 2491156), (10, 1245578), (20, 622789), (389, 32020), (778, 16010), (1556, 8005), (1601, 7780), (1945, 6404), (3202, 3890)]