138655405

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2719}}^1$

素因数の和:2809

約数の個数: 32

約数和(自身を含む): 200540160

約数和(自身を除く): 61884755

約数列:

[1, 5, 7, 31, 35, 47, 155, 217, 235, 329, 1085, 1457, 1645, 2719, 7285, 10199, 13595, 19033, 50995, 84289, 95165, 127793, 421445, 590023, 638965, 894551, 2950115, 3961583, 4472755, 19807915, 27731081, 138655405]

約数ペア:

[(1, 138655405), (5, 27731081), (7, 19807915), (31, 4472755), (35, 3961583), (47, 2950115), (155, 894551), (217, 638965), (235, 590023), (329, 421445), (1085, 127793), (1457, 95165), (1645, 84289), (2719, 50995), (7285, 19033), (10199, 13595)]