640805280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{13763}}^1$

素因数の和:13878

約数の個数: 96

約数和(自身を含む): 2039494464

約数和(自身を除く): 1398689184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 97, 120, 160, 194, 240, 291, 388, 480, 485, 582, 776, 970, 1164, 1455, 1552, 1940, 2328, 2910, 3104, 3880, 4656, 5820, 7760, 9312, 11640, 13763, 15520, 23280, 27526, 41289, 46560, 55052, 68815, 82578, 110104, 137630, 165156, 206445, 220208, 275260, 330312, 412890, 440416, 550520, 660624, 825780, 1101040, 1321248, 1335011, 1651560, 2202080, 2670022, 3303120, 4005033, 5340044, 6606240, 6675055, 8010066, 10680088, 13350110, 16020132, 20025165, 21360176, 26700220, 32040264, 40050330, 42720352, 53400440, 64080528, 80100660, 106800880, 128161056, 160201320, 213601760, 320402640, 640805280]

約数ペア:

[(1, 640805280), (2, 320402640), (3, 213601760), (4, 160201320), (5, 128161056), (6, 106800880), (8, 80100660), (10, 64080528), (12, 53400440), (15, 42720352), (16, 40050330), (20, 32040264), (24, 26700220), (30, 21360176), (32, 20025165), (40, 16020132), (48, 13350110), (60, 10680088), (80, 8010066), (96, 6675055), (97, 6606240), (120, 5340044), (160, 4005033), (194, 3303120), (240, 2670022), (291, 2202080), (388, 1651560), (480, 1335011), (485, 1321248), (582, 1101040), (776, 825780), (970, 660624), (1164, 550520), (1455, 440416), (1552, 412890), (1940, 330312), (2328, 275260), (2910, 220208), (3104, 206445), (3880, 165156), (4656, 137630), (5820, 110104), (7760, 82578), (9312, 68815), (11640, 55052), (13763, 46560), (15520, 41289), (23280, 27526)]