25973480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 63504000

約数和(自身を除く): 37530520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 251, 260, 398, 502, 520, 796, 995, 1004, 1255, 1592, 1990, 2008, 2510, 2587, 3263, 3980, 5020, 5174, 6526, 7960, 10040, 10348, 12935, 13052, 16315, 20696, 25870, 26104, 32630, 49949, 51740, 65260, 99898, 103480, 130520, 199796, 249745, 399592, 499490, 649337, 998980, 1298674, 1997960, 2597348, 3246685, 5194696, 6493370, 12986740, 25973480]

約数ペア:

[(1, 25973480), (2, 12986740), (4, 6493370), (5, 5194696), (8, 3246685), (10, 2597348), (13, 1997960), (20, 1298674), (26, 998980), (40, 649337), (52, 499490), (65, 399592), (104, 249745), (130, 199796), (199, 130520), (251, 103480), (260, 99898), (398, 65260), (502, 51740), (520, 49949), (796, 32630), (995, 26104), (1004, 25870), (1255, 20696), (1592, 16315), (1990, 13052), (2008, 12935), (2510, 10348), (2587, 10040), (3263, 7960), (3980, 6526), (5020, 5174)]