66262640

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8539}}^1$

素因数の和:8649

約数の個数: 40

約数和(自身を含む): 155667120

約数和(自身を除く): 89404480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 8539, 17078, 34156, 42695, 68312, 85390, 136624, 170780, 341560, 683120, 828283, 1656566, 3313132, 4141415, 6626264, 8282830, 13252528, 16565660, 33131320, 66262640]

約数ペア:

[(1, 66262640), (2, 33131320), (4, 16565660), (5, 13252528), (8, 8282830), (10, 6626264), (16, 4141415), (20, 3313132), (40, 1656566), (80, 828283), (97, 683120), (194, 341560), (388, 170780), (485, 136624), (776, 85390), (970, 68312), (1552, 42695), (1940, 34156), (3880, 17078), (7760, 8539)]