200110420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1\times {\mathrm{367}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 426585600

約数和(自身を除く): 226475180

約数列:

[1, 2, 4, 5, 10, 20, 137, 199, 274, 367, 398, 548, 685, 734, 796, 995, 1370, 1468, 1835, 1990, 2740, 3670, 3980, 7340, 27263, 50279, 54526, 73033, 100558, 109052, 136315, 146066, 201116, 251395, 272630, 292132, 365165, 502790, 545260, 730330, 1005580, 1460660, 10005521, 20011042, 40022084, 50027605, 100055210, 200110420]

約数ペア:

[(1, 200110420), (2, 100055210), (4, 50027605), (5, 40022084), (10, 20011042), (20, 10005521), (137, 1460660), (199, 1005580), (274, 730330), (367, 545260), (398, 502790), (548, 365165), (685, 292132), (734, 272630), (796, 251395), (995, 201116), (1370, 146066), (1468, 136315), (1835, 109052), (1990, 100558), (2740, 73033), (3670, 54526), (3980, 50279), (7340, 27263)]