19689040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35159}}^1$

素因数の和:35179

約数の個数: 40

約数和(自身を含む): 52318080

約数和(自身を除く): 32629040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35159, 70318, 140636, 175795, 246113, 281272, 351590, 492226, 562544, 703180, 984452, 1230565, 1406360, 1968904, 2461130, 2812720, 3937808, 4922260, 9844520, 19689040]

約数ペア:

[(1, 19689040), (2, 9844520), (4, 4922260), (5, 3937808), (7, 2812720), (8, 2461130), (10, 1968904), (14, 1406360), (16, 1230565), (20, 984452), (28, 703180), (35, 562544), (40, 492226), (56, 351590), (70, 281272), (80, 246113), (112, 175795), (140, 140636), (280, 70318), (560, 35159)]