139255720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112303}}^1$

素因数の和:112345

約数の個数: 32

約数和(自身を含む): 323435520

約数和(自身を除く): 184179800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 112303, 224606, 449212, 561515, 898424, 1123030, 2246060, 3481393, 4492120, 6962786, 13925572, 17406965, 27851144, 34813930, 69627860, 139255720]

約数ペア:

[(1, 139255720), (2, 69627860), (4, 34813930), (5, 27851144), (8, 17406965), (10, 13925572), (20, 6962786), (31, 4492120), (40, 3481393), (62, 2246060), (124, 1123030), (155, 898424), (248, 561515), (310, 449212), (620, 224606), (1240, 112303)]