31780060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122231}}^1$

素因数の和:122253

約数の個数: 24

約数和(自身を含む): 71872416

約数和(自身を除く): 40092356

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122231, 244462, 488924, 611155, 1222310, 1589003, 2444620, 3178006, 6356012, 7945015, 15890030, 31780060]

約数ペア:

[(1, 31780060), (2, 15890030), (4, 7945015), (5, 6356012), (10, 3178006), (13, 2444620), (20, 1589003), (26, 1222310), (52, 611155), (65, 488924), (130, 244462), (260, 122231)]