138417160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{70621}}^1$

素因数の和:70646

約数の個数: 48

約数和(自身を含む): 362290860

約数和(自身を除く): 223873700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 70621, 141242, 282484, 353105, 494347, 564968, 706210, 988694, 1412420, 1977388, 2471735, 2824840, 3460429, 3954776, 4943470, 6920858, 9886940, 13841716, 17302145, 19773880, 27683432, 34604290, 69208580, 138417160]

約数ペア:

[(1, 138417160), (2, 69208580), (4, 34604290), (5, 27683432), (7, 19773880), (8, 17302145), (10, 13841716), (14, 9886940), (20, 6920858), (28, 4943470), (35, 3954776), (40, 3460429), (49, 2824840), (56, 2471735), (70, 1977388), (98, 1412420), (140, 988694), (196, 706210), (245, 564968), (280, 494347), (392, 353105), (490, 282484), (980, 141242), (1960, 70621)]