51439520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2657}}^1$

素因数の和:2694

約数の個数: 72

約数和(自身を含む): 133628292

約数和(自身を除く): 82188772

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 2657, 3872, 4840, 5314, 9680, 10628, 13285, 19360, 21256, 26570, 29227, 42512, 53140, 58454, 85024, 106280, 116908, 146135, 212560, 233816, 292270, 321497, 425120, 467632, 584540, 642994, 935264, 1169080, 1285988, 1607485, 2338160, 2571976, 3214970, 4676320, 5143952, 6429940, 10287904, 12859880, 25719760, 51439520]

約数ペア:

[(1, 51439520), (2, 25719760), (4, 12859880), (5, 10287904), (8, 6429940), (10, 5143952), (11, 4676320), (16, 3214970), (20, 2571976), (22, 2338160), (32, 1607485), (40, 1285988), (44, 1169080), (55, 935264), (80, 642994), (88, 584540), (110, 467632), (121, 425120), (160, 321497), (176, 292270), (220, 233816), (242, 212560), (352, 146135), (440, 116908), (484, 106280), (605, 85024), (880, 58454), (968, 53140), (1210, 42512), (1760, 29227), (1936, 26570), (2420, 21256), (2657, 19360), (3872, 13285), (4840, 10628), (5314, 9680)]