2020041040

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1\times {\mathrm{569}}^1$

素因数の和:1004

約数の個数: 80

約数和(自身を含む): 4749696000

約数和(自身を除く): 2729654960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 223, 398, 446, 569, 796, 892, 995, 1115, 1138, 1592, 1784, 1990, 2230, 2276, 2845, 3184, 3568, 3980, 4460, 4552, 5690, 7960, 8920, 9104, 11380, 15920, 17840, 22760, 44377, 45520, 88754, 113231, 126887, 177508, 221885, 226462, 253774, 355016, 443770, 452924, 507548, 566155, 634435, 710032, 887540, 905848, 1015096, 1132310, 1268870, 1775080, 1811696, 2030192, 2264620, 2537740, 3550160, 4529240, 5075480, 9058480, 10150960, 25250513, 50501026, 101002052, 126252565, 202004104, 252505130, 404008208, 505010260, 1010020520, 2020041040]

約数ペア:

[(1, 2020041040), (2, 1010020520), (4, 505010260), (5, 404008208), (8, 252505130), (10, 202004104), (16, 126252565), (20, 101002052), (40, 50501026), (80, 25250513), (199, 10150960), (223, 9058480), (398, 5075480), (446, 4529240), (569, 3550160), (796, 2537740), (892, 2264620), (995, 2030192), (1115, 1811696), (1138, 1775080), (1592, 1268870), (1784, 1132310), (1990, 1015096), (2230, 905848), (2276, 887540), (2845, 710032), (3184, 634435), (3568, 566155), (3980, 507548), (4460, 452924), (4552, 443770), (5690, 355016), (7960, 253774), (8920, 226462), (9104, 221885), (11380, 177508), (15920, 126887), (17840, 113231), (22760, 88754), (44377, 45520)]