81607968

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:407

約数の個数: 144

約数和(自身を含む): 254270016

約数和(自身を除く): 172662048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 71, 72, 78, 96, 104, 117, 142, 144, 156, 208, 213, 234, 284, 288, 307, 312, 416, 426, 468, 568, 614, 624, 639, 852, 921, 923, 936, 1136, 1228, 1248, 1278, 1704, 1842, 1846, 1872, 2272, 2456, 2556, 2763, 2769, 3408, 3684, 3692, 3744, 3991, 4912, 5112, 5526, 5538, 6816, 7368, 7384, 7982, 8307, 9824, 10224, 11052, 11076, 11973, 14736, 14768, 15964, 16614, 20448, 21797, 22104, 22152, 23946, 29472, 29536, 31928, 33228, 35919, 43594, 44208, 44304, 47892, 63856, 65391, 66456, 71838, 87188, 88416, 88608, 95784, 127712, 130782, 132912, 143676, 174376, 191568, 196173, 261564, 265824, 283361, 287352, 348752, 383136, 392346, 523128, 566722, 574704, 697504, 784692, 850083, 1046256, 1133444, 1149408, 1569384, 1700166, 2092512, 2266888, 2550249, 3138768, 3400332, 4533776, 5100498, 6277536, 6800664, 9067552, 10200996, 13601328, 20401992, 27202656, 40803984, 81607968]

約数ペア:

[(1, 81607968), (2, 40803984), (3, 27202656), (4, 20401992), (6, 13601328), (8, 10200996), (9, 9067552), (12, 6800664), (13, 6277536), (16, 5100498), (18, 4533776), (24, 3400332), (26, 3138768), (32, 2550249), (36, 2266888), (39, 2092512), (48, 1700166), (52, 1569384), (71, 1149408), (72, 1133444), (78, 1046256), (96, 850083), (104, 784692), (117, 697504), (142, 574704), (144, 566722), (156, 523128), (208, 392346), (213, 383136), (234, 348752), (284, 287352), (288, 283361), (307, 265824), (312, 261564), (416, 196173), (426, 191568), (468, 174376), (568, 143676), (614, 132912), (624, 130782), (639, 127712), (852, 95784), (921, 88608), (923, 88416), (936, 87188), (1136, 71838), (1228, 66456), (1248, 65391), (1278, 63856), (1704, 47892), (1842, 44304), (1846, 44208), (1872, 43594), (2272, 35919), (2456, 33228), (2556, 31928), (2763, 29536), (2769, 29472), (3408, 23946), (3684, 22152), (3692, 22104), (3744, 21797), (3991, 20448), (4912, 16614), (5112, 15964), (5526, 14768), (5538, 14736), (6816, 11973), (7368, 11076), (7384, 11052), (7982, 10224), (8307, 9824)]