215651920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{911}}^1$

素因数の和:1204

約数の個数: 80

約数和(自身を含む): 549607680

約数和(自身を除く): 333955760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 269, 440, 538, 880, 911, 1076, 1345, 1822, 2152, 2690, 2959, 3644, 4304, 4555, 5380, 5918, 7288, 9110, 10021, 10760, 11836, 14576, 14795, 18220, 20042, 21520, 23672, 29590, 36440, 40084, 47344, 50105, 59180, 72880, 80168, 100210, 118360, 160336, 200420, 236720, 245059, 400840, 490118, 801680, 980236, 1225295, 1960472, 2450590, 2695649, 3920944, 4901180, 5391298, 9802360, 10782596, 13478245, 19604720, 21565192, 26956490, 43130384, 53912980, 107825960, 215651920]

約数ペア:

[(1, 215651920), (2, 107825960), (4, 53912980), (5, 43130384), (8, 26956490), (10, 21565192), (11, 19604720), (16, 13478245), (20, 10782596), (22, 9802360), (40, 5391298), (44, 4901180), (55, 3920944), (80, 2695649), (88, 2450590), (110, 1960472), (176, 1225295), (220, 980236), (269, 801680), (440, 490118), (538, 400840), (880, 245059), (911, 236720), (1076, 200420), (1345, 160336), (1822, 118360), (2152, 100210), (2690, 80168), (2959, 72880), (3644, 59180), (4304, 50105), (4555, 47344), (5380, 40084), (5918, 36440), (7288, 29590), (9110, 23672), (10021, 21520), (10760, 20042), (11836, 18220), (14576, 14795)]