28475540

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10243}}^1$

素因数の和:10391

約数の個数: 24

約数和(自身を含む): 60234720

約数和(自身を除く): 31759180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 10243, 20486, 40972, 51215, 102430, 204860, 1423777, 2847554, 5695108, 7118885, 14237770, 28475540]

約数ペア:

[(1, 28475540), (2, 14237770), (4, 7118885), (5, 5695108), (10, 2847554), (20, 1423777), (139, 204860), (278, 102430), (556, 51215), (695, 40972), (1390, 20486), (2780, 10243)]