1639739976

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^3\times {\mathrm{1423}}^1$

素因数の和:1496

約数の個数: 128

約数和(自身を含む): 4948684800

約数和(自身を除く): 3308944824

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 56, 57, 76, 84, 114, 133, 152, 168, 228, 266, 361, 399, 456, 532, 722, 798, 1064, 1083, 1423, 1444, 1596, 2166, 2527, 2846, 2888, 3192, 4269, 4332, 5054, 5692, 6859, 7581, 8538, 8664, 9961, 10108, 11384, 13718, 15162, 17076, 19922, 20216, 20577, 27037, 27436, 29883, 30324, 34152, 39844, 41154, 48013, 54074, 54872, 59766, 60648, 79688, 81111, 82308, 96026, 108148, 119532, 144039, 162222, 164616, 189259, 192052, 216296, 239064, 288078, 324444, 378518, 384104, 513703, 567777, 576156, 648888, 757036, 1027406, 1135554, 1152312, 1514072, 1541109, 2054812, 2271108, 3082218, 3595921, 4109624, 4542216, 6164436, 7191842, 9760357, 10787763, 12328872, 14383684, 19520714, 21575526, 28767368, 29281071, 39041428, 43151052, 58562142, 68322499, 78082856, 86302104, 117124284, 136644998, 204967497, 234248568, 273289996, 409934994, 546579992, 819869988, 1639739976]

約数ペア:

[(1, 1639739976), (2, 819869988), (3, 546579992), (4, 409934994), (6, 273289996), (7, 234248568), (8, 204967497), (12, 136644998), (14, 117124284), (19, 86302104), (21, 78082856), (24, 68322499), (28, 58562142), (38, 43151052), (42, 39041428), (56, 29281071), (57, 28767368), (76, 21575526), (84, 19520714), (114, 14383684), (133, 12328872), (152, 10787763), (168, 9760357), (228, 7191842), (266, 6164436), (361, 4542216), (399, 4109624), (456, 3595921), (532, 3082218), (722, 2271108), (798, 2054812), (1064, 1541109), (1083, 1514072), (1423, 1152312), (1444, 1135554), (1596, 1027406), (2166, 757036), (2527, 648888), (2846, 576156), (2888, 567777), (3192, 513703), (4269, 384104), (4332, 378518), (5054, 324444), (5692, 288078), (6859, 239064), (7581, 216296), (8538, 192052), (8664, 189259), (9961, 164616), (10108, 162222), (11384, 144039), (13718, 119532), (15162, 108148), (17076, 96026), (19922, 82308), (20216, 81111), (20577, 79688), (27037, 60648), (27436, 59766), (29883, 54872), (30324, 54074), (34152, 48013), (39844, 41154)]