68456180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263293}}^1$

素因数の和:263315

約数の個数: 24

約数和(自身を含む): 154816872

約数和(自身を除く): 86360692

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263293, 526586, 1053172, 1316465, 2632930, 3422809, 5265860, 6845618, 13691236, 17114045, 34228090, 68456180]

約数ペア:

[(1, 68456180), (2, 34228090), (4, 17114045), (5, 13691236), (10, 6845618), (13, 5265860), (20, 3422809), (26, 2632930), (52, 1316465), (65, 1053172), (130, 526586), (260, 263293)]