31961540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122929}}^1$

素因数の和:122951

約数の個数: 24

約数和(自身を含む): 72282840

約数和(自身を除く): 40321300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122929, 245858, 491716, 614645, 1229290, 1598077, 2458580, 3196154, 6392308, 7990385, 15980770, 31961540]

約数ペア:

[(1, 31961540), (2, 15980770), (4, 7990385), (5, 6392308), (10, 3196154), (13, 2458580), (20, 1598077), (26, 1229290), (52, 614645), (65, 491716), (130, 245858), (260, 122929)]