19860304945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{449}}^1\times {\mathrm{1697}}^1$

素因数の和:2565

約数の個数: 32

約数和(自身を含む): 25802128800

約数和(自身を除く): 5941823855

約数列:

[1, 5, 13, 65, 401, 449, 1697, 2005, 2245, 5213, 5837, 8485, 22061, 26065, 29185, 110305, 180049, 680497, 761953, 900245, 2340637, 3402485, 3809765, 8846461, 9905389, 11703185, 44232305, 49526945, 305543153, 1527715765, 3972060989, 19860304945]

約数ペア:

[(1, 19860304945), (5, 3972060989), (13, 1527715765), (65, 305543153), (401, 49526945), (449, 44232305), (1697, 11703185), (2005, 9905389), (2245, 8846461), (5213, 3809765), (5837, 3402485), (8485, 2340637), (22061, 900245), (26065, 761953), (29185, 680497), (110305, 180049)]