221338880

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{3529}}^1$

素因数の和:3564

約数の個数: 108

約数和(自身を含む): 616909860

約数和(自身を除く): 395570980

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3529, 3920, 4480, 6272, 7058, 7840, 8960, 12544, 14116, 15680, 17645, 24703, 28232, 31360, 35290, 49406, 56464, 62720, 70580, 98812, 112928, 123515, 141160, 172921, 197624, 225856, 247030, 282320, 345842, 395248, 451712, 494060, 564640, 691684, 790496, 864605, 903424, 988120, 1129280, 1383368, 1580992, 1729210, 1976240, 2258560, 2766736, 3161984, 3458420, 3952480, 4517120, 5533472, 6323968, 6916840, 7904960, 11066944, 13833680, 15809920, 22133888, 27667360, 31619840, 44267776, 55334720, 110669440, 221338880]

約数ペア:

[(1, 221338880), (2, 110669440), (4, 55334720), (5, 44267776), (7, 31619840), (8, 27667360), (10, 22133888), (14, 15809920), (16, 13833680), (20, 11066944), (28, 7904960), (32, 6916840), (35, 6323968), (40, 5533472), (49, 4517120), (56, 3952480), (64, 3458420), (70, 3161984), (80, 2766736), (98, 2258560), (112, 1976240), (128, 1729210), (140, 1580992), (160, 1383368), (196, 1129280), (224, 988120), (245, 903424), (256, 864605), (280, 790496), (320, 691684), (392, 564640), (448, 494060), (490, 451712), (560, 395248), (640, 345842), (784, 282320), (896, 247030), (980, 225856), (1120, 197624), (1280, 172921), (1568, 141160), (1792, 123515), (1960, 112928), (2240, 98812), (3136, 70580), (3529, 62720), (3920, 56464), (4480, 49406), (6272, 35290), (7058, 31360), (7840, 28232), (8960, 24703), (12544, 17645), (14116, 15680)]