290384080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{518543}}^1$

素因数の和:518563

約数の個数: 40

約数和(自身を含む): 771593472

約数和(自身を除く): 481209392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 518543, 1037086, 2074172, 2592715, 3629801, 4148344, 5185430, 7259602, 8296688, 10370860, 14519204, 18149005, 20741720, 29038408, 36298010, 41483440, 58076816, 72596020, 145192040, 290384080]

約数ペア:

[(1, 290384080), (2, 145192040), (4, 72596020), (5, 58076816), (7, 41483440), (8, 36298010), (10, 29038408), (14, 20741720), (16, 18149005), (20, 14519204), (28, 10370860), (35, 8296688), (40, 7259602), (56, 5185430), (70, 4148344), (80, 3629801), (112, 2592715), (140, 2074172), (280, 1037086), (560, 518543)]