138207890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{194659}}^1$

素因数の和:194737

約数の個数: 16

約数和(自身を含む): 252279360

約数和(自身を除く): 114071470

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 194659, 389318, 973295, 1946590, 13820789, 27641578, 69103945, 138207890]

約数ペア:

[(1, 138207890), (2, 69103945), (5, 27641578), (10, 13820789), (71, 1946590), (142, 973295), (355, 389318), (710, 194659)]