28664615

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:983

約数の個数: 32

約数和(自身を含む): 42024960

約数和(自身を除く): 13360345

約数列:

[1, 5, 7, 29, 31, 35, 145, 155, 203, 217, 899, 911, 1015, 1085, 4495, 4555, 6293, 6377, 26419, 28241, 31465, 31885, 132095, 141205, 184933, 197687, 818989, 924665, 988435, 4094945, 5732923, 28664615]

約数ペア:

[(1, 28664615), (5, 5732923), (7, 4094945), (29, 988435), (31, 924665), (35, 818989), (145, 197687), (155, 184933), (203, 141205), (217, 132095), (899, 31885), (911, 31465), (1015, 28241), (1085, 26419), (4495, 6377), (4555, 6293)]