81080025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{607}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 145657344

約数和(自身を除く): 64577319

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 137, 195, 325, 411, 607, 685, 975, 1781, 1821, 2055, 3035, 3425, 5343, 7891, 8905, 9105, 10275, 15175, 23673, 26715, 39455, 44525, 45525, 83159, 118365, 133575, 197275, 249477, 415795, 591825, 1081067, 1247385, 2078975, 3243201, 5405335, 6236925, 16216005, 27026675, 81080025]

約数ペア:

[(1, 81080025), (3, 27026675), (5, 16216005), (13, 6236925), (15, 5405335), (25, 3243201), (39, 2078975), (65, 1247385), (75, 1081067), (137, 591825), (195, 415795), (325, 249477), (411, 197275), (607, 133575), (685, 118365), (975, 83159), (1781, 45525), (1821, 44525), (2055, 39455), (3035, 26715), (3425, 23673), (5343, 15175), (7891, 10275), (8905, 9105)]