211098680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{405959}}^1$

素因数の和:405983

約数の個数: 32

約数和(自身を含む): 511509600

約数和(自身を除く): 300410920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 405959, 811918, 1623836, 2029795, 3247672, 4059590, 5277467, 8119180, 10554934, 16238360, 21109868, 26387335, 42219736, 52774670, 105549340, 211098680]

約数ペア:

[(1, 211098680), (2, 105549340), (4, 52774670), (5, 42219736), (8, 26387335), (10, 21109868), (13, 16238360), (20, 10554934), (26, 8119180), (40, 5277467), (52, 4059590), (65, 3247672), (104, 2029795), (130, 1623836), (260, 811918), (520, 405959)]