256349040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1301}}^1$

素因数の和:2138

約数の個数: 80

約数和(自身を含む): 796261536

約数和(自身を除く): 539912496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 821, 1301, 1642, 2463, 2602, 3284, 3903, 4105, 4926, 5204, 6505, 6568, 7806, 8210, 9852, 10408, 12315, 13010, 13136, 15612, 16420, 19515, 19704, 20816, 24630, 26020, 31224, 32840, 39030, 39408, 49260, 52040, 62448, 65680, 78060, 98520, 104080, 156120, 197040, 312240, 1068121, 2136242, 3204363, 4272484, 5340605, 6408726, 8544968, 10681210, 12817452, 16021815, 17089936, 21362420, 25634904, 32043630, 42724840, 51269808, 64087260, 85449680, 128174520, 256349040]

約数ペア:

[(1, 256349040), (2, 128174520), (3, 85449680), (4, 64087260), (5, 51269808), (6, 42724840), (8, 32043630), (10, 25634904), (12, 21362420), (15, 17089936), (16, 16021815), (20, 12817452), (24, 10681210), (30, 8544968), (40, 6408726), (48, 5340605), (60, 4272484), (80, 3204363), (120, 2136242), (240, 1068121), (821, 312240), (1301, 197040), (1642, 156120), (2463, 104080), (2602, 98520), (3284, 78060), (3903, 65680), (4105, 62448), (4926, 52040), (5204, 49260), (6505, 39408), (6568, 39030), (7806, 32840), (8210, 31224), (9852, 26020), (10408, 24630), (12315, 20816), (13010, 19704), (13136, 19515), (15612, 16420)]