81330432976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{289853}}^1$

素因数の和:289964

約数の個数: 80

約数和(自身を含む): 181147155840

約数和(自身を除く): 99816722864

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 71, 76, 104, 142, 152, 208, 247, 284, 304, 494, 568, 923, 988, 1136, 1349, 1846, 1976, 2698, 3692, 3952, 5396, 7384, 10792, 14768, 17537, 21584, 35074, 70148, 140296, 280592, 289853, 579706, 1159412, 2318824, 3768089, 4637648, 5507207, 7536178, 11014414, 15072356, 20579563, 22028828, 30144712, 41159126, 44057656, 60289424, 71593691, 82318252, 88115312, 143187382, 164636504, 267534319, 286374764, 329273008, 391011697, 535068638, 572749528, 782023394, 1070137276, 1145499056, 1564046788, 2140274552, 3128093576, 4280549104, 5083152061, 6256187152, 10166304122, 20332608244, 40665216488, 81330432976]

約数ペア:

[(1, 81330432976), (2, 40665216488), (4, 20332608244), (8, 10166304122), (13, 6256187152), (16, 5083152061), (19, 4280549104), (26, 3128093576), (38, 2140274552), (52, 1564046788), (71, 1145499056), (76, 1070137276), (104, 782023394), (142, 572749528), (152, 535068638), (208, 391011697), (247, 329273008), (284, 286374764), (304, 267534319), (494, 164636504), (568, 143187382), (923, 88115312), (988, 82318252), (1136, 71593691), (1349, 60289424), (1846, 44057656), (1976, 41159126), (2698, 30144712), (3692, 22028828), (3952, 20579563), (5396, 15072356), (7384, 11014414), (10792, 7536178), (14768, 5507207), (17537, 4637648), (21584, 3768089), (35074, 2318824), (70148, 1159412), (140296, 579706), (280592, 289853)]