256804570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 553029120

約数和(自身を除く): 296224550

約数列:

[1, 2, 5, 10, 11, 19, 22, 29, 38, 55, 58, 95, 110, 145, 190, 209, 223, 290, 319, 361, 418, 446, 551, 638, 722, 1045, 1102, 1115, 1595, 1805, 2090, 2230, 2453, 2755, 3190, 3610, 3971, 4237, 4906, 5510, 6061, 6467, 7942, 8474, 10469, 12122, 12265, 12934, 19855, 20938, 21185, 24530, 30305, 32335, 39710, 42370, 46607, 52345, 60610, 64670, 71137, 80503, 93214, 104690, 115159, 122873, 142274, 161006, 230318, 233035, 245746, 355685, 402515, 466070, 575795, 614365, 711370, 805030, 885533, 1151590, 1228730, 1351603, 1771066, 2334587, 2703206, 4427665, 4669174, 6758015, 8855330, 11672935, 13516030, 23345870, 25680457, 51360914, 128402285, 256804570]

約数ペア:

[(1, 256804570), (2, 128402285), (5, 51360914), (10, 25680457), (11, 23345870), (19, 13516030), (22, 11672935), (29, 8855330), (38, 6758015), (55, 4669174), (58, 4427665), (95, 2703206), (110, 2334587), (145, 1771066), (190, 1351603), (209, 1228730), (223, 1151590), (290, 885533), (319, 805030), (361, 711370), (418, 614365), (446, 575795), (551, 466070), (638, 402515), (722, 355685), (1045, 245746), (1102, 233035), (1115, 230318), (1595, 161006), (1805, 142274), (2090, 122873), (2230, 115159), (2453, 104690), (2755, 93214), (3190, 80503), (3610, 71137), (3971, 64670), (4237, 60610), (4906, 52345), (5510, 46607), (6061, 42370), (6467, 39710), (7942, 32335), (8474, 30305), (10469, 24530), (12122, 21185), (12265, 20938), (12934, 19855)]