19719565

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6407795

約数列:

[1, 5, 29, 31, 41, 107, 145, 155, 205, 535, 899, 1189, 1271, 3103, 3317, 4387, 4495, 5945, 6355, 15515, 16585, 21935, 36859, 96193, 127223, 135997, 184295, 480965, 636115, 679985, 3943913, 19719565]

約数ペア:

[(1, 19719565), (5, 3943913), (29, 679985), (31, 636115), (41, 480965), (107, 184295), (145, 135997), (155, 127223), (205, 96193), (535, 36859), (899, 21935), (1189, 16585), (1271, 15515), (3103, 6355), (3317, 5945), (4387, 4495)]