31987488

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:135

約数の個数: 144

約数和(自身を含む): 96780096

約数和(自身を除く): 64792608

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 32, 38, 39, 48, 52, 57, 71, 76, 78, 96, 104, 114, 142, 152, 156, 208, 213, 228, 247, 284, 304, 312, 361, 416, 426, 456, 494, 568, 608, 624, 722, 741, 852, 912, 923, 988, 1083, 1136, 1248, 1349, 1444, 1482, 1704, 1824, 1846, 1976, 2166, 2272, 2698, 2769, 2888, 2964, 3408, 3692, 3952, 4047, 4332, 4693, 5396, 5538, 5776, 5928, 6816, 7384, 7904, 8094, 8664, 9386, 10792, 11076, 11552, 11856, 14079, 14768, 16188, 17328, 17537, 18772, 21584, 22152, 23712, 25631, 28158, 29536, 32376, 34656, 35074, 37544, 43168, 44304, 51262, 52611, 56316, 64752, 70148, 75088, 76893, 88608, 102524, 105222, 112632, 129504, 140296, 150176, 153786, 205048, 210444, 225264, 280592, 307572, 333203, 410096, 420888, 450528, 561184, 615144, 666406, 820192, 841776, 999609, 1230288, 1332812, 1683552, 1999218, 2460576, 2665624, 3998436, 5331248, 7996872, 10662496, 15993744, 31987488]

約数ペア:

[(1, 31987488), (2, 15993744), (3, 10662496), (4, 7996872), (6, 5331248), (8, 3998436), (12, 2665624), (13, 2460576), (16, 1999218), (19, 1683552), (24, 1332812), (26, 1230288), (32, 999609), (38, 841776), (39, 820192), (48, 666406), (52, 615144), (57, 561184), (71, 450528), (76, 420888), (78, 410096), (96, 333203), (104, 307572), (114, 280592), (142, 225264), (152, 210444), (156, 205048), (208, 153786), (213, 150176), (228, 140296), (247, 129504), (284, 112632), (304, 105222), (312, 102524), (361, 88608), (416, 76893), (426, 75088), (456, 70148), (494, 64752), (568, 56316), (608, 52611), (624, 51262), (722, 44304), (741, 43168), (852, 37544), (912, 35074), (923, 34656), (988, 32376), (1083, 29536), (1136, 28158), (1248, 25631), (1349, 23712), (1444, 22152), (1482, 21584), (1704, 18772), (1824, 17537), (1846, 17328), (1976, 16188), (2166, 14768), (2272, 14079), (2698, 11856), (2769, 11552), (2888, 11076), (2964, 10792), (3408, 9386), (3692, 8664), (3952, 8094), (4047, 7904), (4332, 7384), (4693, 6816), (5396, 5928), (5538, 5776)]