216424640

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21817}}^1$

素因数の和:21865

約数の個数: 56

約数和(自身を含む): 532010112

約数和(自身を除く): 315585472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 21817, 43634, 87268, 109085, 174536, 218170, 349072, 436340, 676327, 698144, 872680, 1352654, 1396288, 1745360, 2705308, 3381635, 3490720, 5410616, 6763270, 6981440, 10821232, 13526540, 21642464, 27053080, 43284928, 54106160, 108212320, 216424640]

約数ペア:

[(1, 216424640), (2, 108212320), (4, 54106160), (5, 43284928), (8, 27053080), (10, 21642464), (16, 13526540), (20, 10821232), (31, 6981440), (32, 6763270), (40, 5410616), (62, 3490720), (64, 3381635), (80, 2705308), (124, 1745360), (155, 1396288), (160, 1352654), (248, 872680), (310, 698144), (320, 676327), (496, 436340), (620, 349072), (992, 218170), (1240, 174536), (1984, 109085), (2480, 87268), (4960, 43634), (9920, 21817)]