80271880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{154369}}^1$

素因数の和:154393

約数の個数: 32

約数和(自身を含む): 194506200

約数和(自身を除く): 114234320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 154369, 308738, 617476, 771845, 1234952, 1543690, 2006797, 3087380, 4013594, 6174760, 8027188, 10033985, 16054376, 20067970, 40135940, 80271880]

約数ペア:

[(1, 80271880), (2, 40135940), (4, 20067970), (5, 16054376), (8, 10033985), (10, 8027188), (13, 6174760), (20, 4013594), (26, 3087380), (40, 2006797), (52, 1543690), (65, 1234952), (104, 771845), (130, 617476), (260, 308738), (520, 154369)]