816390420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{21227}}^1$

素因数の和:21880

約数の個数: 48

約数和(自身を含む): 2289567168

約数和(自身を除く): 1473176748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 641, 1282, 1923, 2564, 3205, 3846, 6410, 7692, 9615, 12820, 19230, 21227, 38460, 42454, 63681, 84908, 106135, 127362, 212270, 254724, 318405, 424540, 636810, 1273620, 13606507, 27213014, 40819521, 54426028, 68032535, 81639042, 136065070, 163278084, 204097605, 272130140, 408195210, 816390420]

約数ペア:

[(1, 816390420), (2, 408195210), (3, 272130140), (4, 204097605), (5, 163278084), (6, 136065070), (10, 81639042), (12, 68032535), (15, 54426028), (20, 40819521), (30, 27213014), (60, 13606507), (641, 1273620), (1282, 636810), (1923, 424540), (2564, 318405), (3205, 254724), (3846, 212270), (6410, 127362), (7692, 106135), (9615, 84908), (12820, 63681), (19230, 42454), (21227, 38460)]