55651220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39191}}^1$

素因数の和:39271

約数の個数: 24

約数和(自身を含む): 118516608

約数和(自身を除く): 62865388

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 39191, 78382, 156764, 195955, 391910, 783820, 2782561, 5565122, 11130244, 13912805, 27825610, 55651220]

約数ペア:

[(1, 55651220), (2, 27825610), (4, 13912805), (5, 11130244), (10, 5565122), (20, 2782561), (71, 783820), (142, 391910), (284, 195955), (355, 156764), (710, 78382), (1420, 39191)]