51479260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5179}}^1$

素因数の和:5266

約数の個数: 48

約数和(自身を含む): 125314560

約数和(自身を除く): 73835300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 5179, 9940, 10358, 20716, 25895, 36253, 51790, 72506, 103580, 145012, 181265, 362530, 367709, 725060, 735418, 1470836, 1838545, 2573963, 3677090, 5147926, 7354180, 10295852, 12869815, 25739630, 51479260]

約数ペア:

[(1, 51479260), (2, 25739630), (4, 12869815), (5, 10295852), (7, 7354180), (10, 5147926), (14, 3677090), (20, 2573963), (28, 1838545), (35, 1470836), (70, 735418), (71, 725060), (140, 367709), (142, 362530), (284, 181265), (355, 145012), (497, 103580), (710, 72506), (994, 51790), (1420, 36253), (1988, 25895), (2485, 20716), (4970, 10358), (5179, 9940)]