256464

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:164

約数の個数: 60

約数和(自身を含む): 778596

約数和(自身を除く): 522132

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 137, 144, 156, 208, 234, 274, 312, 411, 468, 548, 624, 822, 936, 1096, 1233, 1644, 1781, 1872, 2192, 2466, 3288, 3562, 4932, 5343, 6576, 7124, 9864, 10686, 14248, 16029, 19728, 21372, 28496, 32058, 42744, 64116, 85488, 128232, 256464]

約数ペア:

[(1, 256464), (2, 128232), (3, 85488), (4, 64116), (6, 42744), (8, 32058), (9, 28496), (12, 21372), (13, 19728), (16, 16029), (18, 14248), (24, 10686), (26, 9864), (36, 7124), (39, 6576), (48, 5343), (52, 4932), (72, 3562), (78, 3288), (104, 2466), (117, 2192), (137, 1872), (144, 1781), (156, 1644), (208, 1233), (234, 1096), (274, 936), (312, 822), (411, 624), (468, 548)]