81643744

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 144

約数和(自身を含む): 210706272

約数和(自身を除く): 129062528

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 46, 52, 53, 56, 91, 92, 104, 106, 112, 161, 182, 184, 208, 212, 224, 299, 322, 364, 368, 371, 416, 424, 529, 598, 644, 689, 728, 736, 742, 848, 1058, 1196, 1219, 1288, 1378, 1456, 1484, 1696, 2093, 2116, 2392, 2438, 2576, 2756, 2912, 2968, 3703, 4186, 4232, 4784, 4823, 4876, 5152, 5512, 5936, 6877, 7406, 8372, 8464, 8533, 9568, 9646, 9752, 11024, 11872, 13754, 14812, 15847, 16744, 16928, 17066, 19292, 19504, 22048, 27508, 28037, 29624, 31694, 33488, 34132, 38584, 39008, 48139, 55016, 56074, 59248, 63388, 66976, 68264, 77168, 96278, 110032, 110929, 112148, 118496, 126776, 136528, 154336, 192556, 196259, 220064, 221858, 224296, 253552, 273056, 364481, 385112, 392518, 443716, 448592, 507104, 728962, 770224, 785036, 887432, 897184, 1457924, 1540448, 1570072, 1774864, 2551367, 2915848, 3140144, 3549728, 5102734, 5831696, 6280288, 10205468, 11663392, 20410936, 40821872, 81643744]

約数ペア:

[(1, 81643744), (2, 40821872), (4, 20410936), (7, 11663392), (8, 10205468), (13, 6280288), (14, 5831696), (16, 5102734), (23, 3549728), (26, 3140144), (28, 2915848), (32, 2551367), (46, 1774864), (52, 1570072), (53, 1540448), (56, 1457924), (91, 897184), (92, 887432), (104, 785036), (106, 770224), (112, 728962), (161, 507104), (182, 448592), (184, 443716), (208, 392518), (212, 385112), (224, 364481), (299, 273056), (322, 253552), (364, 224296), (368, 221858), (371, 220064), (416, 196259), (424, 192556), (529, 154336), (598, 136528), (644, 126776), (689, 118496), (728, 112148), (736, 110929), (742, 110032), (848, 96278), (1058, 77168), (1196, 68264), (1219, 66976), (1288, 63388), (1378, 59248), (1456, 56074), (1484, 55016), (1696, 48139), (2093, 39008), (2116, 38584), (2392, 34132), (2438, 33488), (2576, 31694), (2756, 29624), (2912, 28037), (2968, 27508), (3703, 22048), (4186, 19504), (4232, 19292), (4784, 17066), (4823, 16928), (4876, 16744), (5152, 15847), (5512, 14812), (5936, 13754), (6877, 11872), (7406, 11024), (8372, 9752), (8464, 9646), (8533, 9568)]