17939180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1321}}^1$

素因数の和:1434

約数の個数: 48

約数和(自身を含む): 43530816

約数和(自身を除く): 25591636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1321, 1358, 1940, 2642, 2716, 3395, 5284, 6605, 6790, 9247, 13210, 13580, 18494, 26420, 36988, 46235, 92470, 128137, 184940, 256274, 512548, 640685, 896959, 1281370, 1793918, 2562740, 3587836, 4484795, 8969590, 17939180]

約数ペア:

[(1, 17939180), (2, 8969590), (4, 4484795), (5, 3587836), (7, 2562740), (10, 1793918), (14, 1281370), (20, 896959), (28, 640685), (35, 512548), (70, 256274), (97, 184940), (140, 128137), (194, 92470), (388, 46235), (485, 36988), (679, 26420), (970, 18494), (1321, 13580), (1358, 13210), (1940, 9247), (2642, 6790), (2716, 6605), (3395, 5284)]