28866890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:112

約数の個数: 96

約数和(自身を含む): 63244800

約数和(自身を除く): 34377910

約数列:

[1, 2, 5, 10, 13, 19, 26, 29, 31, 38, 58, 62, 65, 95, 130, 145, 155, 169, 190, 247, 290, 310, 338, 377, 403, 494, 551, 589, 754, 806, 845, 899, 1102, 1178, 1235, 1690, 1798, 1885, 2015, 2470, 2755, 2945, 3211, 3770, 4030, 4495, 4901, 5239, 5510, 5890, 6422, 7163, 7657, 8990, 9802, 10478, 11687, 14326, 15314, 16055, 17081, 23374, 24505, 26195, 32110, 34162, 35815, 38285, 49010, 52390, 58435, 71630, 76570, 85405, 93119, 99541, 116870, 151931, 170810, 186238, 199082, 222053, 303862, 444106, 465595, 497705, 759655, 931190, 995410, 1110265, 1519310, 2220530, 2886689, 5773378, 14433445, 28866890]

約数ペア:

[(1, 28866890), (2, 14433445), (5, 5773378), (10, 2886689), (13, 2220530), (19, 1519310), (26, 1110265), (29, 995410), (31, 931190), (38, 759655), (58, 497705), (62, 465595), (65, 444106), (95, 303862), (130, 222053), (145, 199082), (155, 186238), (169, 170810), (190, 151931), (247, 116870), (290, 99541), (310, 93119), (338, 85405), (377, 76570), (403, 71630), (494, 58435), (551, 52390), (589, 49010), (754, 38285), (806, 35815), (845, 34162), (899, 32110), (1102, 26195), (1178, 24505), (1235, 23374), (1690, 17081), (1798, 16055), (1885, 15314), (2015, 14326), (2470, 11687), (2755, 10478), (2945, 9802), (3211, 8990), (3770, 7657), (4030, 7163), (4495, 6422), (4901, 5890), (5239, 5510)]