21920700640

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{911}}^1\times {\mathrm{1489}}^1$

素因数の和:2516

約数の個数: 96

約数和(自身を含む): 52392977280

約数和(自身を除く): 30472276640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 911, 1010, 1489, 1616, 1822, 2020, 2978, 3232, 3644, 4040, 4555, 5956, 7288, 7445, 8080, 9110, 11912, 14576, 14890, 16160, 18220, 23824, 29152, 29780, 36440, 47648, 59560, 72880, 92011, 119120, 145760, 150389, 184022, 238240, 300778, 368044, 460055, 601556, 736088, 751945, 920110, 1203112, 1356479, 1472176, 1503890, 1840220, 2406224, 2712958, 2944352, 3007780, 3680440, 4812448, 5425916, 6015560, 6782395, 7360880, 10851832, 12031120, 13564790, 14721760, 21703664, 24062240, 27129580, 43407328, 54259160, 108518320, 137004379, 217036640, 274008758, 548017516, 685021895, 1096035032, 1370043790, 2192070064, 2740087580, 4384140128, 5480175160, 10960350320, 21920700640]

約数ペア:

[(1, 21920700640), (2, 10960350320), (4, 5480175160), (5, 4384140128), (8, 2740087580), (10, 2192070064), (16, 1370043790), (20, 1096035032), (32, 685021895), (40, 548017516), (80, 274008758), (101, 217036640), (160, 137004379), (202, 108518320), (404, 54259160), (505, 43407328), (808, 27129580), (911, 24062240), (1010, 21703664), (1489, 14721760), (1616, 13564790), (1822, 12031120), (2020, 10851832), (2978, 7360880), (3232, 6782395), (3644, 6015560), (4040, 5425916), (4555, 4812448), (5956, 3680440), (7288, 3007780), (7445, 2944352), (8080, 2712958), (9110, 2406224), (11912, 1840220), (14576, 1503890), (14890, 1472176), (16160, 1356479), (18220, 1203112), (23824, 920110), (29152, 751945), (29780, 736088), (36440, 601556), (47648, 460055), (59560, 368044), (72880, 300778), (92011, 238240), (119120, 184022), (145760, 150389)]