20617800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{4909}}^1$

素因数の和:4935

約数の個数: 96

約数和(自身を含む): 73060800

約数和(自身を除く): 52443000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200, 4909, 9818, 14727, 19636, 24545, 29454, 34363, 39272, 49090, 58908, 68726, 73635, 98180, 103089, 117816, 122725, 137452, 147270, 171815, 196360, 206178, 245450, 274904, 294540, 343630, 368175, 412356, 490900, 515445, 589080, 687260, 736350, 824712, 859075, 981800, 1030890, 1374520, 1472700, 1718150, 2061780, 2577225, 2945400, 3436300, 4123560, 5154450, 6872600, 10308900, 20617800]

約数ペア:

[(1, 20617800), (2, 10308900), (3, 6872600), (4, 5154450), (5, 4123560), (6, 3436300), (7, 2945400), (8, 2577225), (10, 2061780), (12, 1718150), (14, 1472700), (15, 1374520), (20, 1030890), (21, 981800), (24, 859075), (25, 824712), (28, 736350), (30, 687260), (35, 589080), (40, 515445), (42, 490900), (50, 412356), (56, 368175), (60, 343630), (70, 294540), (75, 274904), (84, 245450), (100, 206178), (105, 196360), (120, 171815), (140, 147270), (150, 137452), (168, 122725), (175, 117816), (200, 103089), (210, 98180), (280, 73635), (300, 68726), (350, 58908), (420, 49090), (525, 39272), (600, 34363), (700, 29454), (840, 24545), (1050, 19636), (1400, 14727), (2100, 9818), (4200, 4909)]