20407029245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{373379}}^1$

素因数の和:374044

約数の個数: 16

約数和(自身を含む): 25969325760

約数和(自身を除く): 5562296515

約数列:

[1, 5, 17, 85, 643, 3215, 10931, 54655, 373379, 1866895, 6347443, 31737215, 240082697, 1200413485, 4081405849, 20407029245]

約数ペア:

[(1, 20407029245), (5, 4081405849), (17, 1200413485), (85, 240082697), (643, 31737215), (3215, 6347443), (10931, 1866895), (54655, 373379)]