20290370

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1877}}^1$

素因数の和:1954

約数の個数: 32

約数和(自身を含む): 38942208

約数和(自身を除く): 18651838

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 1877, 2162, 3754, 5405, 9385, 10810, 18770, 43171, 86342, 88219, 176438, 215855, 431710, 441095, 882190, 2029037, 4058074, 10145185, 20290370]

約数ペア:

[(1, 20290370), (2, 10145185), (5, 4058074), (10, 2029037), (23, 882190), (46, 441095), (47, 431710), (94, 215855), (115, 176438), (230, 88219), (235, 86342), (470, 43171), (1081, 18770), (1877, 10810), (2162, 9385), (3754, 5405)]