6542780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 14394240

約数和(自身を除く): 7851460

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 101, 158, 164, 202, 205, 316, 395, 404, 410, 505, 790, 820, 1010, 1580, 2020, 3239, 4141, 6478, 7979, 8282, 12956, 15958, 16195, 16564, 20705, 31916, 32390, 39895, 41410, 64780, 79790, 82820, 159580, 327139, 654278, 1308556, 1635695, 3271390, 6542780]

約数ペア:

[(1, 6542780), (2, 3271390), (4, 1635695), (5, 1308556), (10, 654278), (20, 327139), (41, 159580), (79, 82820), (82, 79790), (101, 64780), (158, 41410), (164, 39895), (202, 32390), (205, 31916), (316, 20705), (395, 16564), (404, 16195), (410, 15958), (505, 12956), (790, 8282), (820, 7979), (1010, 6478), (1580, 4141), (2020, 3239)]