257351328

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{68737}}^1$

素因数の和:68766

約数の個数: 72

約数和(自身を含む): 788149908

約数和(自身を除く): 530798580

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 68737, 137474, 206211, 274948, 412422, 549896, 618633, 824844, 893581, 1099792, 1237266, 1649688, 1787162, 2199584, 2474532, 2680743, 3299376, 3574324, 4949064, 5361486, 6598752, 7148648, 8042229, 9898128, 10722972, 14297296, 16084458, 19796256, 21445944, 28594592, 32168916, 42891888, 64337832, 85783776, 128675664, 257351328]

約数ペア:

[(1, 257351328), (2, 128675664), (3, 85783776), (4, 64337832), (6, 42891888), (8, 32168916), (9, 28594592), (12, 21445944), (13, 19796256), (16, 16084458), (18, 14297296), (24, 10722972), (26, 9898128), (32, 8042229), (36, 7148648), (39, 6598752), (48, 5361486), (52, 4949064), (72, 3574324), (78, 3299376), (96, 2680743), (104, 2474532), (117, 2199584), (144, 1787162), (156, 1649688), (208, 1237266), (234, 1099792), (288, 893581), (312, 824844), (416, 618633), (468, 549896), (624, 412422), (936, 274948), (1248, 206211), (1872, 137474), (3744, 68737)]