138167960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{493457}}^1$

素因数の和:493475

約数の個数: 32

約数和(自身を含む): 355289760

約数和(自身を除く): 217121800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 493457, 986914, 1973828, 2467285, 3454199, 3947656, 4934570, 6908398, 9869140, 13816796, 17270995, 19738280, 27633592, 34541990, 69083980, 138167960]

約数ペア:

[(1, 138167960), (2, 69083980), (4, 34541990), (5, 27633592), (7, 19738280), (8, 17270995), (10, 13816796), (14, 9869140), (20, 6908398), (28, 4934570), (35, 3947656), (40, 3454199), (56, 2467285), (70, 1973828), (140, 986914), (280, 493457)]