78830920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281539}}^1$

素因数の和:281557

約数の個数: 32

約数和(自身を含む): 202708800

約数和(自身を除く): 123877880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281539, 563078, 1126156, 1407695, 1970773, 2252312, 2815390, 3941546, 5630780, 7883092, 9853865, 11261560, 15766184, 19707730, 39415460, 78830920]

約数ペア:

[(1, 78830920), (2, 39415460), (4, 19707730), (5, 15766184), (7, 11261560), (8, 9853865), (10, 7883092), (14, 5630780), (20, 3941546), (28, 2815390), (35, 2252312), (40, 1970773), (56, 1407695), (70, 1126156), (140, 563078), (280, 281539)]