20064160

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1409}}^1$

素因数の和:1513

約数の個数: 48

約数和(自身を含む): 47968200

約数和(自身を除く): 27904040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1409, 1424, 1780, 2818, 2848, 3560, 5636, 7045, 7120, 11272, 14090, 14240, 22544, 28180, 45088, 56360, 112720, 125401, 225440, 250802, 501604, 627005, 1003208, 1254010, 2006416, 2508020, 4012832, 5016040, 10032080, 20064160]

約数ペア:

[(1, 20064160), (2, 10032080), (4, 5016040), (5, 4012832), (8, 2508020), (10, 2006416), (16, 1254010), (20, 1003208), (32, 627005), (40, 501604), (80, 250802), (89, 225440), (160, 125401), (178, 112720), (356, 56360), (445, 45088), (712, 28180), (890, 22544), (1409, 14240), (1424, 14090), (1780, 11272), (2818, 7120), (2848, 7045), (3560, 5636)]