221074640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{919}}^1$

素因数の和:1060

約数の個数: 80

約数和(自身を含む): 536632320

約数和(自身を除く): 315557680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 97, 124, 155, 194, 248, 310, 388, 485, 496, 620, 776, 919, 970, 1240, 1552, 1838, 1940, 2480, 3007, 3676, 3880, 4595, 6014, 7352, 7760, 9190, 12028, 14704, 15035, 18380, 24056, 28489, 30070, 36760, 48112, 56978, 60140, 73520, 89143, 113956, 120280, 142445, 178286, 227912, 240560, 284890, 356572, 445715, 455824, 569780, 713144, 891430, 1139560, 1426288, 1782860, 2279120, 2763433, 3565720, 5526866, 7131440, 11053732, 13817165, 22107464, 27634330, 44214928, 55268660, 110537320, 221074640]

約数ペア:

[(1, 221074640), (2, 110537320), (4, 55268660), (5, 44214928), (8, 27634330), (10, 22107464), (16, 13817165), (20, 11053732), (31, 7131440), (40, 5526866), (62, 3565720), (80, 2763433), (97, 2279120), (124, 1782860), (155, 1426288), (194, 1139560), (248, 891430), (310, 713144), (388, 569780), (485, 455824), (496, 445715), (620, 356572), (776, 284890), (919, 240560), (970, 227912), (1240, 178286), (1552, 142445), (1838, 120280), (1940, 113956), (2480, 89143), (3007, 73520), (3676, 60140), (3880, 56978), (4595, 48112), (6014, 36760), (7352, 30070), (7760, 28489), (9190, 24056), (12028, 18380), (14704, 15035)]