8717240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 22671360

約数和(自身を除く): 13954120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 191, 280, 326, 382, 652, 764, 815, 955, 1141, 1304, 1337, 1528, 1630, 1910, 2282, 2674, 3260, 3820, 4564, 5348, 5705, 6520, 6685, 7640, 9128, 10696, 11410, 13370, 22820, 26740, 31133, 45640, 53480, 62266, 124532, 155665, 217931, 249064, 311330, 435862, 622660, 871724, 1089655, 1245320, 1743448, 2179310, 4358620, 8717240]

約数ペア:

[(1, 8717240), (2, 4358620), (4, 2179310), (5, 1743448), (7, 1245320), (8, 1089655), (10, 871724), (14, 622660), (20, 435862), (28, 311330), (35, 249064), (40, 217931), (56, 155665), (70, 124532), (140, 62266), (163, 53480), (191, 45640), (280, 31133), (326, 26740), (382, 22820), (652, 13370), (764, 11410), (815, 10696), (955, 9128), (1141, 7640), (1304, 6685), (1337, 6520), (1528, 5705), (1630, 5348), (1910, 4564), (2282, 3820), (2674, 3260)]