640435510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{14447}}^1$

素因数の和:14509

約数の個数: 64

約数和(自身を含む): 1398104064

約数和(自身を除く): 757668554

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 55, 62, 65, 110, 130, 143, 155, 286, 310, 341, 403, 682, 715, 806, 1430, 1705, 2015, 3410, 4030, 4433, 8866, 14447, 22165, 28894, 44330, 72235, 144470, 158917, 187811, 317834, 375622, 447857, 794585, 895714, 939055, 1589170, 1878110, 2065921, 2239285, 4131842, 4478570, 4926427, 5822141, 9852854, 10329605, 11644282, 20659210, 24632135, 29110705, 49264270, 58221410, 64043551, 128087102, 320217755, 640435510]

約数ペア:

[(1, 640435510), (2, 320217755), (5, 128087102), (10, 64043551), (11, 58221410), (13, 49264270), (22, 29110705), (26, 24632135), (31, 20659210), (55, 11644282), (62, 10329605), (65, 9852854), (110, 5822141), (130, 4926427), (143, 4478570), (155, 4131842), (286, 2239285), (310, 2065921), (341, 1878110), (403, 1589170), (682, 939055), (715, 895714), (806, 794585), (1430, 447857), (1705, 375622), (2015, 317834), (3410, 187811), (4030, 158917), (4433, 144470), (8866, 72235), (14447, 44330), (22165, 28894)]