19287425

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{607}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 25331712

約数和(自身を除く): 6044287

約数列:

[1, 5, 25, 31, 41, 155, 205, 607, 775, 1025, 1271, 3035, 6355, 15175, 18817, 24887, 31775, 94085, 124435, 470425, 622175, 771497, 3857485, 19287425]

約数ペア:

[(1, 19287425), (5, 3857485), (25, 771497), (31, 622175), (41, 470425), (155, 124435), (205, 94085), (607, 31775), (775, 24887), (1025, 18817), (1271, 15175), (3035, 6355)]