64491140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1663}}^1$

素因数の和:1956

約数の個数: 48

約数和(自身を含む): 155430912

約数和(自身を除く): 90939772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 1108, 1385, 1663, 1939, 2770, 3326, 3878, 5540, 6652, 7756, 8315, 9695, 11641, 16630, 19390, 23282, 33260, 38780, 46564, 58205, 116410, 232820, 460651, 921302, 1842604, 2303255, 3224557, 4606510, 6449114, 9213020, 12898228, 16122785, 32245570, 64491140]

約数ペア:

[(1, 64491140), (2, 32245570), (4, 16122785), (5, 12898228), (7, 9213020), (10, 6449114), (14, 4606510), (20, 3224557), (28, 2303255), (35, 1842604), (70, 921302), (140, 460651), (277, 232820), (554, 116410), (1108, 58205), (1385, 46564), (1663, 38780), (1939, 33260), (2770, 23282), (3326, 19390), (3878, 16630), (5540, 11641), (6652, 9695), (7756, 8315)]