204734460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{487463}}^1$

素因数の和:487482

約数の個数: 48

約数和(自身を含む): 655151616

約数和(自身を除く): 450417156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 487463, 974926, 1462389, 1949852, 2437315, 2924778, 3412241, 4874630, 5849556, 6824482, 7311945, 9749260, 10236723, 13648964, 14623890, 17061205, 20473446, 29247780, 34122410, 40946892, 51183615, 68244820, 102367230, 204734460]

約数ペア:

[(1, 204734460), (2, 102367230), (3, 68244820), (4, 51183615), (5, 40946892), (6, 34122410), (7, 29247780), (10, 20473446), (12, 17061205), (14, 14623890), (15, 13648964), (20, 10236723), (21, 9749260), (28, 7311945), (30, 6824482), (35, 5849556), (42, 4874630), (60, 3412241), (70, 2924778), (84, 2437315), (105, 1949852), (140, 1462389), (210, 974926), (420, 487463)]