15920385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4297}}^1$

素因数の和:4337

約数の個数: 32

約数和(自身を含む): 28882560

約数和(自身を除く): 12962175

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 4297, 12891, 21485, 55861, 64455, 81643, 167583, 244929, 279305, 408215, 837915, 1061359, 1224645, 3184077, 5306795, 15920385]

約数ペア:

[(1, 15920385), (3, 5306795), (5, 3184077), (13, 1224645), (15, 1061359), (19, 837915), (39, 408215), (57, 279305), (65, 244929), (95, 167583), (195, 81643), (247, 64455), (285, 55861), (741, 21485), (1235, 12891), (3705, 4297)]