20965410

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{829}}^1$

素因数の和:1123

約数の個数: 48

約数和(自身を含む): 54770040

約数和(自身を除く): 33804630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 281, 562, 829, 843, 1405, 1658, 1686, 2487, 2529, 2810, 4145, 4215, 4974, 5058, 7461, 8290, 8430, 12435, 12645, 14922, 24870, 25290, 37305, 74610, 232949, 465898, 698847, 1164745, 1397694, 2096541, 2329490, 3494235, 4193082, 6988470, 10482705, 20965410]

約数ペア:

[(1, 20965410), (2, 10482705), (3, 6988470), (5, 4193082), (6, 3494235), (9, 2329490), (10, 2096541), (15, 1397694), (18, 1164745), (30, 698847), (45, 465898), (90, 232949), (281, 74610), (562, 37305), (829, 25290), (843, 24870), (1405, 14922), (1658, 12645), (1686, 12435), (2487, 8430), (2529, 8290), (2810, 7461), (4145, 5058), (4215, 4974)]