1561940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2693}}^1$

素因数の和:2731

約数の個数: 24

約数和(自身を含む): 3394440

約数和(自身を除く): 1832500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 2693, 5386, 10772, 13465, 26930, 53860, 78097, 156194, 312388, 390485, 780970, 1561940]

約数ペア:

[(1, 1561940), (2, 780970), (4, 390485), (5, 312388), (10, 156194), (20, 78097), (29, 53860), (58, 26930), (116, 13465), (145, 10772), (290, 5386), (580, 2693)]