257102460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{17209}}^1$

素因数の和:17307

約数の個数: 72

約数和(自身を含む): 789319440

約数和(自身を除く): 532216980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4980, 7470, 14940, 17209, 34418, 51627, 68836, 86045, 103254, 154881, 172090, 206508, 258135, 309762, 344180, 516270, 619524, 774405, 1032540, 1428347, 1548810, 2856694, 3097620, 4285041, 5713388, 7141735, 8570082, 12855123, 14283470, 17140164, 21425205, 25710246, 28566940, 42850410, 51420492, 64275615, 85700820, 128551230, 257102460]

約数ペア:

[(1, 257102460), (2, 128551230), (3, 85700820), (4, 64275615), (5, 51420492), (6, 42850410), (9, 28566940), (10, 25710246), (12, 21425205), (15, 17140164), (18, 14283470), (20, 12855123), (30, 8570082), (36, 7141735), (45, 5713388), (60, 4285041), (83, 3097620), (90, 2856694), (166, 1548810), (180, 1428347), (249, 1032540), (332, 774405), (415, 619524), (498, 516270), (747, 344180), (830, 309762), (996, 258135), (1245, 206508), (1494, 172090), (1660, 154881), (2490, 103254), (2988, 86045), (3735, 68836), (4980, 51627), (7470, 34418), (14940, 17209)]