8020989440

素因数分解:

$2^9\times 5^1\times {\mathrm{139}}^1\times {\mathrm{22541}}^1$

素因数の和:22703

約数の個数: 80

約数和(自身を含む): 19370791440

約数和(自身を除く): 11349802000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 320, 512, 556, 640, 695, 1112, 1280, 1390, 2224, 2560, 2780, 4448, 5560, 8896, 11120, 17792, 22240, 22541, 35584, 44480, 45082, 71168, 88960, 90164, 112705, 177920, 180328, 225410, 355840, 360656, 450820, 721312, 901640, 1442624, 1803280, 2885248, 3133199, 3606560, 5770496, 6266398, 7213120, 11540992, 12532796, 14426240, 15665995, 25065592, 28852480, 31331990, 50131184, 57704960, 62663980, 100262368, 125327960, 200524736, 250655920, 401049472, 501311840, 802098944, 1002623680, 1604197888, 2005247360, 4010494720, 8020989440]

約数ペア:

[(1, 8020989440), (2, 4010494720), (4, 2005247360), (5, 1604197888), (8, 1002623680), (10, 802098944), (16, 501311840), (20, 401049472), (32, 250655920), (40, 200524736), (64, 125327960), (80, 100262368), (128, 62663980), (139, 57704960), (160, 50131184), (256, 31331990), (278, 28852480), (320, 25065592), (512, 15665995), (556, 14426240), (640, 12532796), (695, 11540992), (1112, 7213120), (1280, 6266398), (1390, 5770496), (2224, 3606560), (2560, 3133199), (2780, 2885248), (4448, 1803280), (5560, 1442624), (8896, 901640), (11120, 721312), (17792, 450820), (22240, 360656), (22541, 355840), (35584, 225410), (44480, 180328), (45082, 177920), (71168, 112705), (88960, 90164)]