218748460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{2371}}^1$

素因数の和:3046

約数の個数: 48

約数和(自身を含む): 526014720

約数和(自身を除く): 307266260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 659, 1318, 2371, 2636, 3295, 4613, 4742, 6590, 9226, 9484, 11855, 13180, 16597, 18452, 23065, 23710, 33194, 46130, 47420, 66388, 82985, 92260, 165970, 331940, 1562489, 3124978, 6249956, 7812445, 10937423, 15624890, 21874846, 31249780, 43749692, 54687115, 109374230, 218748460]

約数ペア:

[(1, 218748460), (2, 109374230), (4, 54687115), (5, 43749692), (7, 31249780), (10, 21874846), (14, 15624890), (20, 10937423), (28, 7812445), (35, 6249956), (70, 3124978), (140, 1562489), (659, 331940), (1318, 165970), (2371, 92260), (2636, 82985), (3295, 66388), (4613, 47420), (4742, 46130), (6590, 33194), (9226, 23710), (9484, 23065), (11855, 18452), (13180, 16597)]