1640590420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11718503}}^1$

素因数の和:11718519

約数の個数: 24

約数和(自身を含む): 3937417344

約数和(自身を除く): 2296826924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11718503, 23437006, 46874012, 58592515, 82029521, 117185030, 164059042, 234370060, 328118084, 410147605, 820295210, 1640590420]

約数ペア:

[(1, 1640590420), (2, 820295210), (4, 410147605), (5, 328118084), (7, 234370060), (10, 164059042), (14, 117185030), (20, 82029521), (28, 58592515), (35, 46874012), (70, 23437006), (140, 11718503)]