20499215425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1\times {\mathrm{3433}}^1$

素因数の和:4442

約数の個数: 48

約数和(自身を含む): 28853292160

約数和(自身を除く): 8354076735

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 967, 1235, 3433, 4835, 6175, 12571, 17165, 18373, 24175, 44629, 62855, 65227, 85825, 91865, 223145, 238849, 314275, 326135, 459325, 847951, 1115725, 1194245, 1630675, 3319711, 4239755, 5971225, 16598555, 21198775, 43156243, 63074509, 82992775, 215781215, 315372545, 819968617, 1078906075, 1576862725, 4099843085, 20499215425]

約数ペア:

[(1, 20499215425), (5, 4099843085), (13, 1576862725), (19, 1078906075), (25, 819968617), (65, 315372545), (95, 215781215), (247, 82992775), (325, 63074509), (475, 43156243), (967, 21198775), (1235, 16598555), (3433, 5971225), (4835, 4239755), (6175, 3319711), (12571, 1630675), (17165, 1194245), (18373, 1115725), (24175, 847951), (44629, 459325), (62855, 326135), (65227, 314275), (85825, 238849), (91865, 223145)]