2157720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17981}}^1$

素因数の和:17995

約数の個数: 32

約数和(自身を含む): 6473520

約数和(自身を除く): 4315800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 17981, 35962, 53943, 71924, 89905, 107886, 143848, 179810, 215772, 269715, 359620, 431544, 539430, 719240, 1078860, 2157720]

約数ペア:

[(1, 2157720), (2, 1078860), (3, 719240), (4, 539430), (5, 431544), (6, 359620), (8, 269715), (10, 215772), (12, 179810), (15, 143848), (20, 107886), (24, 89905), (30, 71924), (40, 53943), (60, 35962), (120, 17981)]