25204780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 55742400

約数和(自身を除く): 30537620

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 157, 230, 314, 349, 460, 628, 698, 785, 1396, 1570, 1745, 3140, 3490, 3611, 6980, 7222, 8027, 14444, 16054, 18055, 32108, 36110, 40135, 54793, 72220, 80270, 109586, 160540, 219172, 273965, 547930, 1095860, 1260239, 2520478, 5040956, 6301195, 12602390, 25204780]

約数ペア:

[(1, 25204780), (2, 12602390), (4, 6301195), (5, 5040956), (10, 2520478), (20, 1260239), (23, 1095860), (46, 547930), (92, 273965), (115, 219172), (157, 160540), (230, 109586), (314, 80270), (349, 72220), (460, 54793), (628, 40135), (698, 36110), (785, 32108), (1396, 18055), (1570, 16054), (1745, 14444), (3140, 8027), (3490, 7222), (3611, 6980)]