218720880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{43397}}^1$

素因数の和:43423

約数の個数: 120

約数和(自身を含む): 839490912

約数和(自身を除く): 620770032

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 43397, 86794, 130191, 173588, 216985, 260382, 303779, 347176, 390573, 433970, 520764, 607558, 650955, 694352, 781146, 867940, 911337, 1041528, 1215116, 1301910, 1518895, 1562292, 1735880, 1822674, 1952865, 2083056, 2430232, 2603820, 2734011, 3037790, 3124584, 3471760, 3645348, 3905730, 4556685, 4860464, 5207640, 5468022, 6075580, 6249168, 7290696, 7811460, 9113370, 10415280, 10936044, 12151160, 13670055, 14581392, 15622920, 18226740, 21872088, 24302320, 27340110, 31245840, 36453480, 43744176, 54680220, 72906960, 109360440, 218720880]

約数ペア:

[(1, 218720880), (2, 109360440), (3, 72906960), (4, 54680220), (5, 43744176), (6, 36453480), (7, 31245840), (8, 27340110), (9, 24302320), (10, 21872088), (12, 18226740), (14, 15622920), (15, 14581392), (16, 13670055), (18, 12151160), (20, 10936044), (21, 10415280), (24, 9113370), (28, 7811460), (30, 7290696), (35, 6249168), (36, 6075580), (40, 5468022), (42, 5207640), (45, 4860464), (48, 4556685), (56, 3905730), (60, 3645348), (63, 3471760), (70, 3124584), (72, 3037790), (80, 2734011), (84, 2603820), (90, 2430232), (105, 2083056), (112, 1952865), (120, 1822674), (126, 1735880), (140, 1562292), (144, 1518895), (168, 1301910), (180, 1215116), (210, 1041528), (240, 911337), (252, 867940), (280, 781146), (315, 694352), (336, 650955), (360, 607558), (420, 520764), (504, 433970), (560, 390573), (630, 347176), (720, 303779), (840, 260382), (1008, 216985), (1260, 173588), (1680, 130191), (2520, 86794), (5040, 43397)]