25747215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 46239648

約数和(自身を除く): 20492433

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 157, 195, 377, 435, 471, 785, 841, 1131, 1885, 2041, 2355, 2523, 4205, 4553, 5655, 6123, 10205, 10933, 12615, 13659, 22765, 30615, 32799, 54665, 59189, 68295, 132037, 163995, 177567, 295945, 396111, 660185, 887835, 1716481, 1980555, 5149443, 8582405, 25747215]

約数ペア:

[(1, 25747215), (3, 8582405), (5, 5149443), (13, 1980555), (15, 1716481), (29, 887835), (39, 660185), (65, 396111), (87, 295945), (145, 177567), (157, 163995), (195, 132037), (377, 68295), (435, 59189), (471, 54665), (785, 32799), (841, 30615), (1131, 22765), (1885, 13659), (2041, 12615), (2355, 10933), (2523, 10205), (4205, 6123), (4553, 5655)]