209971216

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{499}}^1$

素因数の和:561

約数の個数: 120

約数和(自身を含む): 532952000

約数和(自身を除く): 322980784

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 289, 364, 442, 476, 499, 578, 728, 884, 952, 998, 1156, 1456, 1547, 1768, 1904, 1996, 2023, 2312, 3094, 3493, 3536, 3757, 3992, 4046, 4624, 6188, 6487, 6986, 7514, 7984, 8092, 8483, 12376, 12974, 13972, 15028, 16184, 16966, 24752, 25948, 26299, 27944, 30056, 32368, 33932, 45409, 51896, 52598, 55888, 59381, 60112, 67864, 90818, 103792, 105196, 110279, 118762, 135728, 144211, 181636, 210392, 220558, 237524, 288422, 363272, 420784, 441116, 475048, 576844, 726544, 771953, 882232, 950096, 1009477, 1153688, 1543906, 1764464, 1874743, 2018954, 2307376, 3087812, 3749486, 4037908, 6175624, 7498972, 8075816, 12351248, 13123201, 14997944, 16151632, 26246402, 29995888, 52492804, 104985608, 209971216]

約数ペア:

[(1, 209971216), (2, 104985608), (4, 52492804), (7, 29995888), (8, 26246402), (13, 16151632), (14, 14997944), (16, 13123201), (17, 12351248), (26, 8075816), (28, 7498972), (34, 6175624), (52, 4037908), (56, 3749486), (68, 3087812), (91, 2307376), (104, 2018954), (112, 1874743), (119, 1764464), (136, 1543906), (182, 1153688), (208, 1009477), (221, 950096), (238, 882232), (272, 771953), (289, 726544), (364, 576844), (442, 475048), (476, 441116), (499, 420784), (578, 363272), (728, 288422), (884, 237524), (952, 220558), (998, 210392), (1156, 181636), (1456, 144211), (1547, 135728), (1768, 118762), (1904, 110279), (1996, 105196), (2023, 103792), (2312, 90818), (3094, 67864), (3493, 60112), (3536, 59381), (3757, 55888), (3992, 52598), (4046, 51896), (4624, 45409), (6188, 33932), (6487, 32368), (6986, 30056), (7514, 27944), (7984, 26299), (8092, 25948), (8483, 24752), (12376, 16966), (12974, 16184), (13972, 15028)]