81545464

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{599}}^1$

素因数の和:653

約数の個数: 128

約数和(自身を含む): 217728000

約数和(自身を除く): 136182536

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 17, 22, 26, 28, 34, 44, 52, 56, 68, 77, 88, 91, 104, 119, 136, 143, 154, 182, 187, 221, 238, 286, 308, 364, 374, 442, 476, 572, 599, 616, 728, 748, 884, 952, 1001, 1144, 1198, 1309, 1496, 1547, 1768, 2002, 2396, 2431, 2618, 3094, 4004, 4193, 4792, 4862, 5236, 6188, 6589, 7787, 8008, 8386, 9724, 10183, 10472, 12376, 13178, 15574, 16772, 17017, 19448, 20366, 26356, 31148, 33544, 34034, 40732, 46123, 52712, 54509, 62296, 68068, 71281, 81464, 85657, 92246, 109018, 112013, 132379, 136136, 142562, 171314, 184492, 218036, 224026, 264758, 285124, 342628, 368984, 436072, 448052, 529516, 570248, 599599, 685256, 784091, 896104, 926653, 1059032, 1199198, 1456169, 1568182, 1853306, 2398396, 2912338, 3136364, 3706612, 4796792, 5824676, 6272728, 7413224, 10193183, 11649352, 20386366, 40772732, 81545464]

約数ペア:

[(1, 81545464), (2, 40772732), (4, 20386366), (7, 11649352), (8, 10193183), (11, 7413224), (13, 6272728), (14, 5824676), (17, 4796792), (22, 3706612), (26, 3136364), (28, 2912338), (34, 2398396), (44, 1853306), (52, 1568182), (56, 1456169), (68, 1199198), (77, 1059032), (88, 926653), (91, 896104), (104, 784091), (119, 685256), (136, 599599), (143, 570248), (154, 529516), (182, 448052), (187, 436072), (221, 368984), (238, 342628), (286, 285124), (308, 264758), (364, 224026), (374, 218036), (442, 184492), (476, 171314), (572, 142562), (599, 136136), (616, 132379), (728, 112013), (748, 109018), (884, 92246), (952, 85657), (1001, 81464), (1144, 71281), (1198, 68068), (1309, 62296), (1496, 54509), (1547, 52712), (1768, 46123), (2002, 40732), (2396, 34034), (2431, 33544), (2618, 31148), (3094, 26356), (4004, 20366), (4193, 19448), (4792, 17017), (4862, 16772), (5236, 15574), (6188, 13178), (6589, 12376), (7787, 10472), (8008, 10183), (8386, 9724)]