20487840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42683}}^1$

素因数の和:42701

約数の個数: 48

約数和(自身を含む): 64538208

約数和(自身を除く): 44050368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42683, 85366, 128049, 170732, 213415, 256098, 341464, 426830, 512196, 640245, 682928, 853660, 1024392, 1280490, 1365856, 1707320, 2048784, 2560980, 3414640, 4097568, 5121960, 6829280, 10243920, 20487840]

約数ペア:

[(1, 20487840), (2, 10243920), (3, 6829280), (4, 5121960), (5, 4097568), (6, 3414640), (8, 2560980), (10, 2048784), (12, 1707320), (15, 1365856), (16, 1280490), (20, 1024392), (24, 853660), (30, 682928), (32, 640245), (40, 512196), (48, 426830), (60, 341464), (80, 256098), (96, 213415), (120, 170732), (160, 128049), (240, 85366), (480, 42683)]