28977975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9907}}^1$

素因数の和:9936

約数の個数: 36

約数和(自身を含む): 55900936

約数和(自身を除く): 26922961

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9907, 29721, 49535, 89163, 128791, 148605, 247675, 386373, 445815, 643955, 743025, 1159119, 1931865, 2229075, 3219775, 5795595, 9659325, 28977975]

約数ペア:

[(1, 28977975), (3, 9659325), (5, 5795595), (9, 3219775), (13, 2229075), (15, 1931865), (25, 1159119), (39, 743025), (45, 643955), (65, 445815), (75, 386373), (117, 247675), (195, 148605), (225, 128791), (325, 89163), (585, 49535), (975, 29721), (2925, 9907)]