201820920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{240263}}^1$

素因数の和:240284

約数の個数: 64

約数和(自身を含む): 691960320

約数和(自身を除く): 490139400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 240263, 480526, 720789, 961052, 1201315, 1441578, 1681841, 1922104, 2402630, 2883156, 3363682, 3603945, 4805260, 5045523, 5766312, 6727364, 7207890, 8409205, 9610520, 10091046, 13454728, 14415780, 16818410, 20182092, 25227615, 28831560, 33636820, 40364184, 50455230, 67273640, 100910460, 201820920]

約数ペア:

[(1, 201820920), (2, 100910460), (3, 67273640), (4, 50455230), (5, 40364184), (6, 33636820), (7, 28831560), (8, 25227615), (10, 20182092), (12, 16818410), (14, 14415780), (15, 13454728), (20, 10091046), (21, 9610520), (24, 8409205), (28, 7207890), (30, 6727364), (35, 5766312), (40, 5045523), (42, 4805260), (56, 3603945), (60, 3363682), (70, 2883156), (84, 2402630), (105, 1922104), (120, 1681841), (140, 1441578), (168, 1201315), (210, 961052), (280, 720789), (420, 480526), (840, 240263)]