261609940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{433}}^1\times {\mathrm{1777}}^1$

素因数の和:2236

約数の個数: 48

約数和(自身を含む): 583368912

約数和(自身を除く): 321758972

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 433, 866, 1732, 1777, 2165, 3554, 4330, 7108, 7361, 8660, 8885, 14722, 17770, 29444, 30209, 35540, 36805, 60418, 73610, 120836, 147220, 151045, 302090, 604180, 769441, 1538882, 3077764, 3847205, 7694410, 13080497, 15388820, 26160994, 52321988, 65402485, 130804970, 261609940]

約数ペア:

[(1, 261609940), (2, 130804970), (4, 65402485), (5, 52321988), (10, 26160994), (17, 15388820), (20, 13080497), (34, 7694410), (68, 3847205), (85, 3077764), (170, 1538882), (340, 769441), (433, 604180), (866, 302090), (1732, 151045), (1777, 147220), (2165, 120836), (3554, 73610), (4330, 60418), (7108, 36805), (7361, 35540), (8660, 30209), (8885, 29444), (14722, 17770)]