256275180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{203393}}^1$

素因数の和:203415

約数の個数: 72

約数和(自身を含む): 888424992

約数和(自身を除く): 632149812

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 203393, 406786, 610179, 813572, 1016965, 1220358, 1423751, 1830537, 2033930, 2440716, 2847502, 3050895, 3661074, 4067860, 4271253, 5695004, 6101790, 7118755, 7322148, 8542506, 9152685, 12203580, 12813759, 14237510, 17085012, 18305370, 21356265, 25627518, 28475020, 36610740, 42712530, 51255036, 64068795, 85425060, 128137590, 256275180]

約数ペア:

[(1, 256275180), (2, 128137590), (3, 85425060), (4, 64068795), (5, 51255036), (6, 42712530), (7, 36610740), (9, 28475020), (10, 25627518), (12, 21356265), (14, 18305370), (15, 17085012), (18, 14237510), (20, 12813759), (21, 12203580), (28, 9152685), (30, 8542506), (35, 7322148), (36, 7118755), (42, 6101790), (45, 5695004), (60, 4271253), (63, 4067860), (70, 3661074), (84, 3050895), (90, 2847502), (105, 2440716), (126, 2033930), (140, 1830537), (180, 1423751), (210, 1220358), (252, 1016965), (315, 813572), (420, 610179), (630, 406786), (1260, 203393)]