20925480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1693}}^1$

素因数の和:1810

約数の個数: 64

約数和(自身を含む): 63423360

約数和(自身を除く): 42497880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1693, 2060, 2472, 3090, 3386, 4120, 5079, 6180, 6772, 8465, 10158, 12360, 13544, 16930, 20316, 25395, 33860, 40632, 50790, 67720, 101580, 174379, 203160, 348758, 523137, 697516, 871895, 1046274, 1395032, 1743790, 2092548, 2615685, 3487580, 4185096, 5231370, 6975160, 10462740, 20925480]

約数ペア:

[(1, 20925480), (2, 10462740), (3, 6975160), (4, 5231370), (5, 4185096), (6, 3487580), (8, 2615685), (10, 2092548), (12, 1743790), (15, 1395032), (20, 1046274), (24, 871895), (30, 697516), (40, 523137), (60, 348758), (103, 203160), (120, 174379), (206, 101580), (309, 67720), (412, 50790), (515, 40632), (618, 33860), (824, 25395), (1030, 20316), (1236, 16930), (1545, 13544), (1693, 12360), (2060, 10158), (2472, 8465), (3090, 6772), (3386, 6180), (4120, 5079)]