64866670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{25639}}^1$

素因数の和:25680

約数の個数: 32

約数和(自身を含む): 132917760

約数和(自身を除く): 68051090

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 25639, 51278, 128195, 256390, 282029, 564058, 589697, 1179394, 1410145, 2820290, 2948485, 5896970, 6486667, 12973334, 32433335, 64866670]

約数ペア:

[(1, 64866670), (2, 32433335), (5, 12973334), (10, 6486667), (11, 5896970), (22, 2948485), (23, 2820290), (46, 1410145), (55, 1179394), (110, 589697), (115, 564058), (230, 282029), (253, 256390), (506, 128195), (1265, 51278), (2530, 25639)]