640804547992

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4231}}^1\times {\mathrm{6917}}^1$

素因数の和:11201

約数の個数: 128

約数和(自身を含む): 1517718435840

約数和(自身を除く): 876913887848

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 56, 68, 92, 119, 136, 161, 184, 238, 322, 391, 476, 644, 782, 952, 1288, 1564, 2737, 3128, 4231, 5474, 6917, 8462, 10948, 13834, 16924, 21896, 27668, 29617, 33848, 48419, 55336, 59234, 71927, 96838, 97313, 117589, 118468, 143854, 159091, 193676, 194626, 235178, 236936, 287708, 318182, 387352, 389252, 470356, 503489, 575416, 636364, 681191, 778504, 823123, 940712, 1006978, 1113637, 1272728, 1362382, 1646246, 1654321, 2013956, 2227274, 2704547, 2724764, 3292492, 3308642, 4027912, 4454548, 5409094, 5449528, 6584984, 6617284, 8909096, 10818188, 11580247, 13234568, 18931829, 21636376, 23160494, 29265827, 37863658, 46320988, 58531654, 75727316, 92641976, 117063308, 151454632, 204860789, 234126616, 409721578, 497519059, 673114021, 819443156, 995038118, 1346228042, 1638886312, 1990076236, 2692456084, 3482633413, 3980152472, 4711798147, 5384912168, 6965266826, 9423596294, 11442938357, 13930533652, 18847192588, 22885876714, 27861067304, 37694385176, 45771753428, 80100568499, 91543506856, 160201136998, 320402273996, 640804547992]

約数ペア:

[(1, 640804547992), (2, 320402273996), (4, 160201136998), (7, 91543506856), (8, 80100568499), (14, 45771753428), (17, 37694385176), (23, 27861067304), (28, 22885876714), (34, 18847192588), (46, 13930533652), (56, 11442938357), (68, 9423596294), (92, 6965266826), (119, 5384912168), (136, 4711798147), (161, 3980152472), (184, 3482633413), (238, 2692456084), (322, 1990076236), (391, 1638886312), (476, 1346228042), (644, 995038118), (782, 819443156), (952, 673114021), (1288, 497519059), (1564, 409721578), (2737, 234126616), (3128, 204860789), (4231, 151454632), (5474, 117063308), (6917, 92641976), (8462, 75727316), (10948, 58531654), (13834, 46320988), (16924, 37863658), (21896, 29265827), (27668, 23160494), (29617, 21636376), (33848, 18931829), (48419, 13234568), (55336, 11580247), (59234, 10818188), (71927, 8909096), (96838, 6617284), (97313, 6584984), (117589, 5449528), (118468, 5409094), (143854, 4454548), (159091, 4027912), (193676, 3308642), (194626, 3292492), (235178, 2724764), (236936, 2704547), (287708, 2227274), (318182, 2013956), (387352, 1654321), (389252, 1646246), (470356, 1362382), (503489, 1272728), (575416, 1113637), (636364, 1006978), (681191, 940712), (778504, 823123)]