127721984

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:681

約数の個数: 80

約数和(自身を含む): 284148480

約数和(自身を除く): 156426496

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 512, 619, 806, 832, 992, 1238, 1612, 1664, 1984, 2476, 3224, 3328, 3968, 4952, 6448, 6656, 7936, 8047, 9904, 12896, 15872, 16094, 19189, 19808, 25792, 32188, 38378, 39616, 51584, 64376, 76756, 79232, 103168, 128752, 153512, 158464, 206336, 249457, 257504, 307024, 316928, 498914, 515008, 614048, 997828, 1030016, 1228096, 1995656, 2060032, 2456192, 3991312, 4120064, 4912384, 7982624, 9824768, 15965248, 31930496, 63860992, 127721984]

約数ペア:

[(1, 127721984), (2, 63860992), (4, 31930496), (8, 15965248), (13, 9824768), (16, 7982624), (26, 4912384), (31, 4120064), (32, 3991312), (52, 2456192), (62, 2060032), (64, 1995656), (104, 1228096), (124, 1030016), (128, 997828), (208, 614048), (248, 515008), (256, 498914), (403, 316928), (416, 307024), (496, 257504), (512, 249457), (619, 206336), (806, 158464), (832, 153512), (992, 128752), (1238, 103168), (1612, 79232), (1664, 76756), (1984, 64376), (2476, 51584), (3224, 39616), (3328, 38378), (3968, 32188), (4952, 25792), (6448, 19808), (6656, 19189), (7936, 16094), (8047, 15872), (9904, 12896)]