221350280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149561}}^1$

素因数の和:149609

約数の個数: 32

約数和(自身を含む): 511502040

約数和(自身を除く): 290151760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 149561, 299122, 598244, 747805, 1196488, 1495610, 2991220, 5533757, 5982440, 11067514, 22135028, 27668785, 44270056, 55337570, 110675140, 221350280]

約数ペア:

[(1, 221350280), (2, 110675140), (4, 55337570), (5, 44270056), (8, 27668785), (10, 22135028), (20, 11067514), (37, 5982440), (40, 5533757), (74, 2991220), (148, 1495610), (185, 1196488), (296, 747805), (370, 598244), (740, 299122), (1480, 149561)]