20110455

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 37614720

約数和(自身を除く): 17504265

約数列:

[1, 3, 5, 9, 15, 19, 43, 45, 57, 95, 129, 171, 215, 285, 387, 547, 645, 817, 855, 1641, 1935, 2451, 2735, 4085, 4923, 7353, 8205, 10393, 12255, 23521, 24615, 31179, 36765, 51965, 70563, 93537, 117605, 155895, 211689, 352815, 446899, 467685, 1058445, 1340697, 2234495, 4022091, 6703485, 20110455]

約数ペア:

[(1, 20110455), (3, 6703485), (5, 4022091), (9, 2234495), (15, 1340697), (19, 1058445), (43, 467685), (45, 446899), (57, 352815), (95, 211689), (129, 155895), (171, 117605), (215, 93537), (285, 70563), (387, 51965), (547, 36765), (645, 31179), (817, 24615), (855, 23521), (1641, 12255), (1935, 10393), (2451, 8205), (2735, 7353), (4085, 4923)]