1600020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{2963}}^1$

素因数の和:2981

約数の個数: 48

約数和(自身を含む): 4979520

約数和(自身を除く): 3379500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 2963, 5926, 8889, 11852, 14815, 17778, 26667, 29630, 35556, 44445, 53334, 59260, 80001, 88890, 106668, 133335, 160002, 177780, 266670, 320004, 400005, 533340, 800010, 1600020]

約数ペア:

[(1, 1600020), (2, 800010), (3, 533340), (4, 400005), (5, 320004), (6, 266670), (9, 177780), (10, 160002), (12, 133335), (15, 106668), (18, 88890), (20, 80001), (27, 59260), (30, 53334), (36, 44445), (45, 35556), (54, 29630), (60, 26667), (90, 17778), (108, 14815), (135, 11852), (180, 8889), (270, 5926), (540, 2963)]