81498752

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 188006400

約数和(自身を除く): 106507648

約数列:

[1, 2, 4, 8, 16, 19, 23, 31, 32, 38, 46, 47, 62, 64, 76, 92, 94, 124, 128, 152, 184, 188, 248, 304, 368, 376, 437, 496, 589, 608, 713, 736, 752, 874, 893, 992, 1081, 1178, 1216, 1426, 1457, 1472, 1504, 1748, 1786, 1984, 2162, 2356, 2432, 2852, 2914, 2944, 3008, 3496, 3572, 3968, 4324, 4712, 5704, 5828, 6016, 6992, 7144, 8648, 9424, 11408, 11656, 13547, 13984, 14288, 17296, 18848, 20539, 22816, 23312, 27094, 27683, 27968, 28576, 33511, 34592, 37696, 41078, 45632, 46624, 54188, 55366, 55936, 57152, 67022, 69184, 75392, 82156, 91264, 93248, 108376, 110732, 114304, 134044, 138368, 164312, 186496, 216752, 221464, 268088, 328624, 433504, 442928, 536176, 636709, 657248, 867008, 885856, 1072352, 1273418, 1314496, 1734016, 1771712, 2144704, 2546836, 2628992, 3543424, 4289408, 5093672, 10187344, 20374688, 40749376, 81498752]

約数ペア:

[(1, 81498752), (2, 40749376), (4, 20374688), (8, 10187344), (16, 5093672), (19, 4289408), (23, 3543424), (31, 2628992), (32, 2546836), (38, 2144704), (46, 1771712), (47, 1734016), (62, 1314496), (64, 1273418), (76, 1072352), (92, 885856), (94, 867008), (124, 657248), (128, 636709), (152, 536176), (184, 442928), (188, 433504), (248, 328624), (304, 268088), (368, 221464), (376, 216752), (437, 186496), (496, 164312), (589, 138368), (608, 134044), (713, 114304), (736, 110732), (752, 108376), (874, 93248), (893, 91264), (992, 82156), (1081, 75392), (1178, 69184), (1216, 67022), (1426, 57152), (1457, 55936), (1472, 55366), (1504, 54188), (1748, 46624), (1786, 45632), (1984, 41078), (2162, 37696), (2356, 34592), (2432, 33511), (2852, 28576), (2914, 27968), (2944, 27683), (3008, 27094), (3496, 23312), (3572, 22816), (3968, 20539), (4324, 18848), (4712, 17296), (5704, 14288), (5828, 13984), (6016, 13547), (6992, 11656), (7144, 11408), (8648, 9424)]