81987369040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1066433}}^1$

素因数の和:1066508

約数の個数: 60

約数和(自身を含む): 196968226932

約数和(自身を除く): 114980857892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1240, 1922, 2480, 3844, 4805, 7688, 9610, 15376, 19220, 38440, 76880, 1066433, 2132866, 4265732, 5332165, 8531464, 10664330, 17062928, 21328660, 33059423, 42657320, 66118846, 85314640, 132237692, 165297115, 264475384, 330594230, 528950768, 661188460, 1024842113, 1322376920, 2049684226, 2644753840, 4099368452, 5124210565, 8198736904, 10248421130, 16397473808, 20496842260, 40993684520, 81987369040]

約数ペア:

[(1, 81987369040), (2, 40993684520), (4, 20496842260), (5, 16397473808), (8, 10248421130), (10, 8198736904), (16, 5124210565), (20, 4099368452), (31, 2644753840), (40, 2049684226), (62, 1322376920), (80, 1024842113), (124, 661188460), (155, 528950768), (248, 330594230), (310, 264475384), (496, 165297115), (620, 132237692), (961, 85314640), (1240, 66118846), (1922, 42657320), (2480, 33059423), (3844, 21328660), (4805, 17062928), (7688, 10664330), (9610, 8531464), (15376, 5332165), (19220, 4265732), (38440, 2132866), (76880, 1066433)]