25445240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1511}}^1$

素因数の和:1943

約数の個数: 32

約数和(自身を含む): 57425760

約数和(自身を除く): 31980520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1511, 1684, 2105, 3022, 3368, 4210, 6044, 7555, 8420, 12088, 15110, 16840, 30220, 60440, 636131, 1272262, 2544524, 3180655, 5089048, 6361310, 12722620, 25445240]

約数ペア:

[(1, 25445240), (2, 12722620), (4, 6361310), (5, 5089048), (8, 3180655), (10, 2544524), (20, 1272262), (40, 636131), (421, 60440), (842, 30220), (1511, 16840), (1684, 15110), (2105, 12088), (3022, 8420), (3368, 7555), (4210, 6044)]