205720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 478800

約数和(自身を除く): 273080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 139, 148, 185, 278, 296, 370, 556, 695, 740, 1112, 1390, 1480, 2780, 5143, 5560, 10286, 20572, 25715, 41144, 51430, 102860, 205720]

約数ペア:

[(1, 205720), (2, 102860), (4, 51430), (5, 41144), (8, 25715), (10, 20572), (20, 10286), (37, 5560), (40, 5143), (74, 2780), (139, 1480), (148, 1390), (185, 1112), (278, 740), (296, 695), (370, 556)]