2161280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 5654880

約数和(自身を除く): 3493600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 307, 320, 352, 440, 614, 640, 704, 880, 1228, 1408, 1535, 1760, 2456, 3070, 3377, 3520, 4912, 6140, 6754, 7040, 9824, 12280, 13508, 16885, 19648, 24560, 27016, 33770, 39296, 49120, 54032, 67540, 98240, 108064, 135080, 196480, 216128, 270160, 432256, 540320, 1080640, 2161280]

約数ペア:

[(1, 2161280), (2, 1080640), (4, 540320), (5, 432256), (8, 270160), (10, 216128), (11, 196480), (16, 135080), (20, 108064), (22, 98240), (32, 67540), (40, 54032), (44, 49120), (55, 39296), (64, 33770), (80, 27016), (88, 24560), (110, 19648), (128, 16885), (160, 13508), (176, 12280), (220, 9824), (307, 7040), (320, 6754), (352, 6140), (440, 4912), (614, 3520), (640, 3377), (704, 3070), (880, 2456), (1228, 1760), (1408, 1535)]