2016201220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{28729}}^1$

素因数の和:28789

約数の個数: 72

約数和(自身を含む): 4814573400

約数和(自身を除く): 2798372180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 121, 145, 220, 242, 290, 319, 484, 580, 605, 638, 1210, 1276, 1595, 2420, 3190, 3509, 6380, 7018, 14036, 17545, 28729, 35090, 57458, 70180, 114916, 143645, 287290, 316019, 574580, 632038, 833141, 1264076, 1580095, 1666282, 3160190, 3332564, 3476209, 4165705, 6320380, 6952418, 8331410, 9164551, 13904836, 16662820, 17381045, 18329102, 34762090, 36658204, 45822755, 69524180, 91645510, 100810061, 183291020, 201620122, 403240244, 504050305, 1008100610, 2016201220]

約数ペア:

[(1, 2016201220), (2, 1008100610), (4, 504050305), (5, 403240244), (10, 201620122), (11, 183291020), (20, 100810061), (22, 91645510), (29, 69524180), (44, 45822755), (55, 36658204), (58, 34762090), (110, 18329102), (116, 17381045), (121, 16662820), (145, 13904836), (220, 9164551), (242, 8331410), (290, 6952418), (319, 6320380), (484, 4165705), (580, 3476209), (605, 3332564), (638, 3160190), (1210, 1666282), (1276, 1580095), (1595, 1264076), (2420, 833141), (3190, 632038), (3509, 574580), (6380, 316019), (7018, 287290), (14036, 143645), (17545, 114916), (28729, 70180), (35090, 57458)]