256434728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 582819840

約数和(自身を除く): 326385112

約数列:

[1, 2, 4, 8, 11, 22, 23, 31, 44, 46, 61, 62, 67, 88, 92, 122, 124, 134, 184, 244, 248, 253, 268, 341, 488, 506, 536, 671, 682, 713, 737, 1012, 1342, 1364, 1403, 1426, 1474, 1541, 1891, 2024, 2077, 2684, 2728, 2806, 2852, 2948, 3082, 3782, 4087, 4154, 5368, 5612, 5704, 5896, 6164, 7564, 7843, 8174, 8308, 11224, 12328, 15128, 15433, 15686, 16348, 16616, 16951, 20801, 22847, 30866, 31372, 32696, 33902, 41602, 43493, 44957, 45694, 47771, 61732, 62744, 67804, 83204, 86986, 89914, 91388, 94001, 95542, 123464, 126697, 135608, 166408, 173972, 179828, 182776, 188002, 191084, 253394, 347944, 359656, 376004, 382168, 478423, 506788, 525481, 752008, 956846, 1013576, 1034011, 1050962, 1393667, 1913692, 2068022, 2101924, 2787334, 2914031, 3827384, 4136044, 4203848, 5574668, 5828062, 8272088, 11149336, 11656124, 23312248, 32054341, 64108682, 128217364, 256434728]

約数ペア:

[(1, 256434728), (2, 128217364), (4, 64108682), (8, 32054341), (11, 23312248), (22, 11656124), (23, 11149336), (31, 8272088), (44, 5828062), (46, 5574668), (61, 4203848), (62, 4136044), (67, 3827384), (88, 2914031), (92, 2787334), (122, 2101924), (124, 2068022), (134, 1913692), (184, 1393667), (244, 1050962), (248, 1034011), (253, 1013576), (268, 956846), (341, 752008), (488, 525481), (506, 506788), (536, 478423), (671, 382168), (682, 376004), (713, 359656), (737, 347944), (1012, 253394), (1342, 191084), (1364, 188002), (1403, 182776), (1426, 179828), (1474, 173972), (1541, 166408), (1891, 135608), (2024, 126697), (2077, 123464), (2684, 95542), (2728, 94001), (2806, 91388), (2852, 89914), (2948, 86986), (3082, 83204), (3782, 67804), (4087, 62744), (4154, 61732), (5368, 47771), (5612, 45694), (5704, 44957), (5896, 43493), (6164, 41602), (7564, 33902), (7843, 32696), (8174, 31372), (8308, 30866), (11224, 22847), (12328, 20801), (15128, 16951), (15433, 16616), (15686, 16348)]