80911220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311197}}^1$

素因数の和:311219

約数の個数: 24

約数和(自身を含む): 182984424

約数和(自身を除く): 102073204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 311197, 622394, 1244788, 1555985, 3111970, 4045561, 6223940, 8091122, 16182244, 20227805, 40455610, 80911220]

約数ペア:

[(1, 80911220), (2, 40455610), (4, 20227805), (5, 16182244), (10, 8091122), (13, 6223940), (20, 4045561), (26, 3111970), (52, 1555985), (65, 1244788), (130, 622394), (260, 311197)]