31216780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{222977}}^1$

素因数の和:222993

約数の個数: 24

約数和(自身を含む): 74920608

約数和(自身を除く): 43703828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 222977, 445954, 891908, 1114885, 1560839, 2229770, 3121678, 4459540, 6243356, 7804195, 15608390, 31216780]

約数ペア:

[(1, 31216780), (2, 15608390), (4, 7804195), (5, 6243356), (7, 4459540), (10, 3121678), (14, 2229770), (20, 1560839), (28, 1114885), (35, 891908), (70, 445954), (140, 222977)]