51539140

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 110702592

約数和(自身を除く): 59163452

約数列:

[1, 2, 4, 5, 10, 20, 103, 127, 197, 206, 254, 394, 412, 508, 515, 635, 788, 985, 1030, 1270, 1970, 2060, 2540, 3940, 13081, 20291, 25019, 26162, 40582, 50038, 52324, 65405, 81164, 100076, 101455, 125095, 130810, 202910, 250190, 261620, 405820, 500380, 2576957, 5153914, 10307828, 12884785, 25769570, 51539140]

約数ペア:

[(1, 51539140), (2, 25769570), (4, 12884785), (5, 10307828), (10, 5153914), (20, 2576957), (103, 500380), (127, 405820), (197, 261620), (206, 250190), (254, 202910), (394, 130810), (412, 125095), (508, 101455), (515, 100076), (635, 81164), (788, 65405), (985, 52324), (1030, 50038), (1270, 40582), (1970, 26162), (2060, 25019), (2540, 20291), (3940, 13081)]