81345145

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{107}}^2$

素因数の和:262

約数の個数: 36

約数和(自身を含む): 118574820

約数和(自身を除く): 37229675

約数列:

[1, 5, 7, 29, 35, 49, 107, 145, 203, 245, 535, 749, 1015, 1421, 3103, 3745, 5243, 7105, 11449, 15515, 21721, 26215, 57245, 80143, 108605, 152047, 332021, 400715, 561001, 760235, 1660105, 2324147, 2805005, 11620735, 16269029, 81345145]

約数ペア:

[(1, 81345145), (5, 16269029), (7, 11620735), (29, 2805005), (35, 2324147), (49, 1660105), (107, 760235), (145, 561001), (203, 400715), (245, 332021), (535, 152047), (749, 108605), (1015, 80143), (1421, 57245), (3103, 26215), (3745, 21721), (5243, 15515), (7105, 11449)]