287697920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{83}}^1\times {\mathrm{677}}^1$

素因数の和:785

約数の個数: 88

約数和(自身を含む): 699484464

約数和(自身を除く): 411786544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 256, 320, 332, 415, 512, 640, 664, 677, 830, 1024, 1280, 1328, 1354, 1660, 2560, 2656, 2708, 3320, 3385, 5120, 5312, 5416, 6640, 6770, 10624, 10832, 13280, 13540, 21248, 21664, 26560, 27080, 42496, 43328, 53120, 54160, 56191, 84992, 86656, 106240, 108320, 112382, 173312, 212480, 216640, 224764, 280955, 346624, 424960, 433280, 449528, 561910, 693248, 866560, 899056, 1123820, 1733120, 1798112, 2247640, 3466240, 3596224, 4495280, 7192448, 8990560, 14384896, 17981120, 28769792, 35962240, 57539584, 71924480, 143848960, 287697920]

約数ペア:

[(1, 287697920), (2, 143848960), (4, 71924480), (5, 57539584), (8, 35962240), (10, 28769792), (16, 17981120), (20, 14384896), (32, 8990560), (40, 7192448), (64, 4495280), (80, 3596224), (83, 3466240), (128, 2247640), (160, 1798112), (166, 1733120), (256, 1123820), (320, 899056), (332, 866560), (415, 693248), (512, 561910), (640, 449528), (664, 433280), (677, 424960), (830, 346624), (1024, 280955), (1280, 224764), (1328, 216640), (1354, 212480), (1660, 173312), (2560, 112382), (2656, 108320), (2708, 106240), (3320, 86656), (3385, 84992), (5120, 56191), (5312, 54160), (5416, 53120), (6640, 43328), (6770, 42496), (10624, 27080), (10832, 26560), (13280, 21664), (13540, 21248)]