261755984

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{32917}}^1$

素因数の和:33003

約数の個数: 40

約数和(自身を含む): 587783808

約数和(自身を除く): 326027824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 32917, 65834, 131668, 230419, 263336, 460838, 526672, 921676, 1843352, 2337107, 3686704, 4674214, 9348428, 16359749, 18696856, 32719498, 37393712, 65438996, 130877992, 261755984]

約数ペア:

[(1, 261755984), (2, 130877992), (4, 65438996), (7, 37393712), (8, 32719498), (14, 18696856), (16, 16359749), (28, 9348428), (56, 4674214), (71, 3686704), (112, 2337107), (142, 1843352), (284, 921676), (497, 526672), (568, 460838), (994, 263336), (1136, 230419), (1988, 131668), (3976, 65834), (7952, 32917)]