307156780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{3391}}^1$

素因数の和:4054

約数の個数: 48

約数和(自身を含む): 738533376

約数和(自身を除く): 431376596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647, 1294, 2588, 3235, 3391, 4529, 6470, 6782, 9058, 12940, 13564, 16955, 18116, 22645, 23737, 33910, 45290, 47474, 67820, 90580, 94948, 118685, 237370, 474740, 2193977, 4387954, 8775908, 10969885, 15357839, 21939770, 30715678, 43879540, 61431356, 76789195, 153578390, 307156780]

約数ペア:

[(1, 307156780), (2, 153578390), (4, 76789195), (5, 61431356), (7, 43879540), (10, 30715678), (14, 21939770), (20, 15357839), (28, 10969885), (35, 8775908), (70, 4387954), (140, 2193977), (647, 474740), (1294, 237370), (2588, 118685), (3235, 94948), (3391, 90580), (4529, 67820), (6470, 47474), (6782, 45290), (9058, 33910), (12940, 23737), (13564, 22645), (16955, 18116)]