51578660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5189}}^1$

素因数の和:5276

約数の個数: 48

約数和(自身を含む): 125556480

約数和(自身を除く): 73977820

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, 5189, 9940, 10378, 20756, 25945, 36323, 51890, 72646, 103780, 145292, 181615, 363230, 368419, 726460, 736838, 1473676, 1842095, 2578933, 3684190, 5157866, 7368380, 10315732, 12894665, 25789330, 51578660]

約数ペア:

[(1, 51578660), (2, 25789330), (4, 12894665), (5, 10315732), (7, 7368380), (10, 5157866), (14, 3684190), (20, 2578933), (28, 1842095), (35, 1473676), (70, 736838), (71, 726460), (140, 368419), (142, 363230), (284, 181615), (355, 145292), (497, 103780), (710, 72646), (994, 51890), (1420, 36323), (1988, 25945), (2485, 20756), (4970, 10378), (5189, 9940)]