28760715

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 52565760

約数和(自身を除く): 23805045

約数列:

[1, 3, 5, 9, 15, 31, 45, 53, 93, 155, 159, 265, 279, 389, 465, 477, 795, 1167, 1395, 1643, 1945, 2385, 3501, 4929, 5835, 8215, 12059, 14787, 17505, 20617, 24645, 36177, 60295, 61851, 73935, 103085, 108531, 180885, 185553, 309255, 542655, 639127, 927765, 1917381, 3195635, 5752143, 9586905, 28760715]

約数ペア:

[(1, 28760715), (3, 9586905), (5, 5752143), (9, 3195635), (15, 1917381), (31, 927765), (45, 639127), (53, 542655), (93, 309255), (155, 185553), (159, 180885), (265, 108531), (279, 103085), (389, 73935), (465, 61851), (477, 60295), (795, 36177), (1167, 24645), (1395, 20617), (1643, 17505), (1945, 14787), (2385, 12059), (3501, 8215), (4929, 5835)]