81534856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 176359680

約数和(自身を除く): 94824824

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 107, 136, 214, 221, 428, 431, 442, 856, 862, 884, 1391, 1724, 1768, 1819, 2782, 3448, 3638, 5564, 5603, 7276, 7327, 11128, 11206, 14552, 14654, 22412, 23647, 29308, 44824, 46117, 47294, 58616, 92234, 94588, 95251, 184468, 189176, 190502, 368936, 381004, 599521, 762008, 783989, 1199042, 1567978, 2398084, 3135956, 4796168, 6271912, 10191857, 20383714, 40767428, 81534856]

約数ペア:

[(1, 81534856), (2, 40767428), (4, 20383714), (8, 10191857), (13, 6271912), (17, 4796168), (26, 3135956), (34, 2398084), (52, 1567978), (68, 1199042), (104, 783989), (107, 762008), (136, 599521), (214, 381004), (221, 368936), (428, 190502), (431, 189176), (442, 184468), (856, 95251), (862, 94588), (884, 92234), (1391, 58616), (1724, 47294), (1768, 46117), (1819, 44824), (2782, 29308), (3448, 23647), (3638, 22412), (5564, 14654), (5603, 14552), (7276, 11206), (7327, 11128)]