251690320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{883}}^1$

素因数の和:1412

約数の個数: 80

約数和(自身を含む): 670849920

約数和(自身を除く): 419159600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 509, 560, 883, 1018, 1766, 2036, 2545, 3532, 3563, 4072, 4415, 5090, 6181, 7064, 7126, 8144, 8830, 10180, 12362, 14128, 14252, 17660, 17815, 20360, 24724, 28504, 30905, 35320, 35630, 40720, 49448, 57008, 61810, 70640, 71260, 98896, 123620, 142520, 247240, 285040, 449447, 494480, 898894, 1797788, 2247235, 3146129, 3595576, 4494470, 6292258, 7191152, 8988940, 12584516, 15730645, 17977880, 25169032, 31461290, 35955760, 50338064, 62922580, 125845160, 251690320]

約数ペア:

[(1, 251690320), (2, 125845160), (4, 62922580), (5, 50338064), (7, 35955760), (8, 31461290), (10, 25169032), (14, 17977880), (16, 15730645), (20, 12584516), (28, 8988940), (35, 7191152), (40, 6292258), (56, 4494470), (70, 3595576), (80, 3146129), (112, 2247235), (140, 1797788), (280, 898894), (509, 494480), (560, 449447), (883, 285040), (1018, 247240), (1766, 142520), (2036, 123620), (2545, 98896), (3532, 71260), (3563, 70640), (4072, 61810), (4415, 57008), (5090, 49448), (6181, 40720), (7064, 35630), (7126, 35320), (8144, 30905), (8830, 28504), (10180, 24724), (12362, 20360), (14128, 17815), (14252, 17660)]