51451280

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1039}}^1$

素因数の和:1671

約数の個数: 40

約数和(自身を含む): 119932800

約数和(自身を除く): 68481520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1039, 1238, 2078, 2476, 3095, 4156, 4952, 5195, 6190, 8312, 9904, 10390, 12380, 16624, 20780, 24760, 41560, 49520, 83120, 643141, 1286282, 2572564, 3215705, 5145128, 6431410, 10290256, 12862820, 25725640, 51451280]

約数ペア:

[(1, 51451280), (2, 25725640), (4, 12862820), (5, 10290256), (8, 6431410), (10, 5145128), (16, 3215705), (20, 2572564), (40, 1286282), (80, 643141), (619, 83120), (1039, 49520), (1238, 41560), (2078, 24760), (2476, 20780), (3095, 16624), (4156, 12380), (4952, 10390), (5195, 9904), (6190, 8312)]