203917980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{485519}}^1$

素因数の和:485538

約数の個数: 48

約数和(自身を含む): 652538880

約数和(自身を除く): 448620900

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, 485519, 971038, 1456557, 1942076, 2427595, 2913114, 3398633, 4855190, 5826228, 6797266, 7282785, 9710380, 10195899, 13594532, 14565570, 16993165, 20391798, 29131140, 33986330, 40783596, 50979495, 67972660, 101958990, 203917980]

約数ペア:

[(1, 203917980), (2, 101958990), (3, 67972660), (4, 50979495), (5, 40783596), (6, 33986330), (7, 29131140), (10, 20391798), (12, 16993165), (14, 14565570), (15, 13594532), (20, 10195899), (21, 9710380), (28, 7282785), (30, 6797266), (35, 5826228), (42, 4855190), (60, 3398633), (70, 2913114), (84, 2427595), (105, 1942076), (140, 1456557), (210, 971038), (420, 485519)]