17908520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9137}}^1$

素因数の和:9162

約数の個数: 48

約数和(自身を含む): 46877940

約数和(自身を除く): 28969420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9137, 18274, 36548, 45685, 63959, 73096, 91370, 127918, 182740, 255836, 319795, 365480, 447713, 511672, 639590, 895426, 1279180, 1790852, 2238565, 2558360, 3581704, 4477130, 8954260, 17908520]

約数ペア:

[(1, 17908520), (2, 8954260), (4, 4477130), (5, 3581704), (7, 2558360), (8, 2238565), (10, 1790852), (14, 1279180), (20, 895426), (28, 639590), (35, 511672), (40, 447713), (49, 365480), (56, 319795), (70, 255836), (98, 182740), (140, 127918), (196, 91370), (245, 73096), (280, 63959), (392, 45685), (490, 36548), (980, 18274), (1960, 9137)]