204787380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{487589}}^1$

素因数の和:487608

約数の個数: 48

約数和(自身を含む): 655320960

約数和(自身を除く): 450533580

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, 487589, 975178, 1462767, 1950356, 2437945, 2925534, 3413123, 4875890, 5851068, 6826246, 7313835, 9751780, 10239369, 13652492, 14627670, 17065615, 20478738, 29255340, 34131230, 40957476, 51196845, 68262460, 102393690, 204787380]

約数ペア:

[(1, 204787380), (2, 102393690), (3, 68262460), (4, 51196845), (5, 40957476), (6, 34131230), (7, 29255340), (10, 20478738), (12, 17065615), (14, 14627670), (15, 13652492), (20, 10239369), (21, 9751780), (28, 7313835), (30, 6826246), (35, 5851068), (42, 4875890), (60, 3413123), (70, 2925534), (84, 2437945), (105, 1950356), (140, 1462767), (210, 975178), (420, 487589)]