388045280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{346469}}^1$

素因数の和:346491

約数の個数: 48

約数和(自身を含む): 1047725280

約数和(自身を除く): 659680000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 346469, 692938, 1385876, 1732345, 2425283, 2771752, 3464690, 4850566, 5543504, 6929380, 9701132, 11087008, 12126415, 13858760, 19402264, 24252830, 27717520, 38804528, 48505660, 55435040, 77609056, 97011320, 194022640, 388045280]

約数ペア:

[(1, 388045280), (2, 194022640), (4, 97011320), (5, 77609056), (7, 55435040), (8, 48505660), (10, 38804528), (14, 27717520), (16, 24252830), (20, 19402264), (28, 13858760), (32, 12126415), (35, 11087008), (40, 9701132), (56, 6929380), (70, 5543504), (80, 4850566), (112, 3464690), (140, 2771752), (160, 2425283), (224, 1732345), (280, 1385876), (560, 692938), (1120, 346469)]