53947220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{37991}}^1$

素因数の和:38071

約数の個数: 24

約数和(自身を含む): 114887808

約数和(自身を除く): 60940588

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 37991, 75982, 151964, 189955, 379910, 759820, 2697361, 5394722, 10789444, 13486805, 26973610, 53947220]

約数ペア:

[(1, 53947220), (2, 26973610), (4, 13486805), (5, 10789444), (10, 5394722), (20, 2697361), (71, 759820), (142, 379910), (284, 189955), (355, 151964), (710, 75982), (1420, 37991)]