56491240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108637}}^1$

素因数の和:108661

約数の個数: 32

約数和(自身を含む): 136883880

約数和(自身を除く): 80392640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 108637, 217274, 434548, 543185, 869096, 1086370, 1412281, 2172740, 2824562, 4345480, 5649124, 7061405, 11298248, 14122810, 28245620, 56491240]

約数ペア:

[(1, 56491240), (2, 28245620), (4, 14122810), (5, 11298248), (8, 7061405), (10, 5649124), (13, 4345480), (20, 2824562), (26, 2172740), (40, 1412281), (52, 1086370), (65, 869096), (104, 543185), (130, 434548), (260, 217274), (520, 108637)]