28193220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:546

約数の個数: 144

約数和(自身を含む): 96707520

約数和(自身を除く): 68514300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 29, 30, 33, 36, 44, 45, 55, 58, 60, 66, 87, 90, 99, 110, 116, 132, 145, 165, 174, 180, 198, 220, 261, 290, 319, 330, 348, 396, 435, 491, 495, 522, 580, 638, 660, 870, 957, 982, 990, 1044, 1276, 1305, 1473, 1595, 1740, 1914, 1964, 1980, 2455, 2610, 2871, 2946, 3190, 3828, 4419, 4785, 4910, 5220, 5401, 5742, 5892, 6380, 7365, 8838, 9570, 9820, 10802, 11484, 14239, 14355, 14730, 16203, 17676, 19140, 21604, 22095, 27005, 28478, 28710, 29460, 32406, 42717, 44190, 48609, 54010, 56956, 57420, 64812, 71195, 81015, 85434, 88380, 97218, 108020, 128151, 142390, 156629, 162030, 170868, 194436, 213585, 243045, 256302, 284780, 313258, 324060, 427170, 469887, 486090, 512604, 626516, 640755, 783145, 854340, 939774, 972180, 1281510, 1409661, 1566290, 1879548, 2349435, 2563020, 2819322, 3132580, 4698870, 5638644, 7048305, 9397740, 14096610, 28193220]

約数ペア:

[(1, 28193220), (2, 14096610), (3, 9397740), (4, 7048305), (5, 5638644), (6, 4698870), (9, 3132580), (10, 2819322), (11, 2563020), (12, 2349435), (15, 1879548), (18, 1566290), (20, 1409661), (22, 1281510), (29, 972180), (30, 939774), (33, 854340), (36, 783145), (44, 640755), (45, 626516), (55, 512604), (58, 486090), (60, 469887), (66, 427170), (87, 324060), (90, 313258), (99, 284780), (110, 256302), (116, 243045), (132, 213585), (145, 194436), (165, 170868), (174, 162030), (180, 156629), (198, 142390), (220, 128151), (261, 108020), (290, 97218), (319, 88380), (330, 85434), (348, 81015), (396, 71195), (435, 64812), (491, 57420), (495, 56956), (522, 54010), (580, 48609), (638, 44190), (660, 42717), (870, 32406), (957, 29460), (982, 28710), (990, 28478), (1044, 27005), (1276, 22095), (1305, 21604), (1473, 19140), (1595, 17676), (1740, 16203), (1914, 14730), (1964, 14355), (1980, 14239), (2455, 11484), (2610, 10802), (2871, 9820), (2946, 9570), (3190, 8838), (3828, 7365), (4419, 6380), (4785, 5892), (4910, 5742), (5220, 5401)]