291242120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{560081}}^1$

素因数の和:560105

約数の個数: 32

約数和(自身を含む): 705703320

約数和(自身を除く): 414461200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 560081, 1120162, 2240324, 2800405, 4480648, 5600810, 7281053, 11201620, 14562106, 22403240, 29124212, 36405265, 58248424, 72810530, 145621060, 291242120]

約数ペア:

[(1, 291242120), (2, 145621060), (4, 72810530), (5, 58248424), (8, 36405265), (10, 29124212), (13, 22403240), (20, 14562106), (26, 11201620), (40, 7281053), (52, 5600810), (65, 4480648), (104, 2800405), (130, 2240324), (260, 1120162), (520, 560081)]