640549728

素因数分解:

$2^5\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8147}}^1$

素因数の和:8186

約数の個数: 192

約数和(自身を含む): 2299691520

約数和(自身を除く): 1659141792

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 32, 36, 39, 42, 48, 52, 54, 56, 63, 72, 78, 84, 91, 96, 104, 108, 112, 117, 126, 144, 156, 168, 182, 189, 208, 216, 224, 234, 252, 273, 288, 312, 336, 351, 364, 378, 416, 432, 468, 504, 546, 624, 672, 702, 728, 756, 819, 864, 936, 1008, 1092, 1248, 1404, 1456, 1512, 1638, 1872, 2016, 2184, 2457, 2808, 2912, 3024, 3276, 3744, 4368, 4914, 5616, 6048, 6552, 8147, 8736, 9828, 11232, 13104, 16294, 19656, 24441, 26208, 32588, 39312, 48882, 57029, 65176, 73323, 78624, 97764, 105911, 114058, 130352, 146646, 171087, 195528, 211822, 219969, 228116, 260704, 293292, 317733, 342174, 391056, 423644, 439938, 456232, 513261, 586584, 635466, 684348, 741377, 782112, 847288, 879876, 912464, 953199, 1026522, 1173168, 1270932, 1368696, 1482754, 1539783, 1694576, 1759752, 1824928, 1906398, 2053044, 2224131, 2346336, 2541864, 2737392, 2859597, 2965508, 3079566, 3389152, 3519504, 3812796, 4106088, 4448262, 5083728, 5474784, 5719194, 5931016, 6159132, 6672393, 7039008, 7625592, 8212176, 8896524, 10167456, 11438388, 11862032, 12318264, 13344786, 15251184, 16424352, 17793048, 20017179, 22876776, 23724064, 24636528, 26689572, 30502368, 35586096, 40034358, 45753552, 49273056, 53379144, 71172192, 80068716, 91507104, 106758288, 160137432, 213516576, 320274864, 640549728]

約数ペア:

[(1, 640549728), (2, 320274864), (3, 213516576), (4, 160137432), (6, 106758288), (7, 91507104), (8, 80068716), (9, 71172192), (12, 53379144), (13, 49273056), (14, 45753552), (16, 40034358), (18, 35586096), (21, 30502368), (24, 26689572), (26, 24636528), (27, 23724064), (28, 22876776), (32, 20017179), (36, 17793048), (39, 16424352), (42, 15251184), (48, 13344786), (52, 12318264), (54, 11862032), (56, 11438388), (63, 10167456), (72, 8896524), (78, 8212176), (84, 7625592), (91, 7039008), (96, 6672393), (104, 6159132), (108, 5931016), (112, 5719194), (117, 5474784), (126, 5083728), (144, 4448262), (156, 4106088), (168, 3812796), (182, 3519504), (189, 3389152), (208, 3079566), (216, 2965508), (224, 2859597), (234, 2737392), (252, 2541864), (273, 2346336), (288, 2224131), (312, 2053044), (336, 1906398), (351, 1824928), (364, 1759752), (378, 1694576), (416, 1539783), (432, 1482754), (468, 1368696), (504, 1270932), (546, 1173168), (624, 1026522), (672, 953199), (702, 912464), (728, 879876), (756, 847288), (819, 782112), (864, 741377), (936, 684348), (1008, 635466), (1092, 586584), (1248, 513261), (1404, 456232), (1456, 439938), (1512, 423644), (1638, 391056), (1872, 342174), (2016, 317733), (2184, 293292), (2457, 260704), (2808, 228116), (2912, 219969), (3024, 211822), (3276, 195528), (3744, 171087), (4368, 146646), (4914, 130352), (5616, 114058), (6048, 105911), (6552, 97764), (8147, 78624), (8736, 73323), (9828, 65176), (11232, 57029), (13104, 48882), (16294, 39312), (19656, 32588), (24441, 26208)]