123647540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{691}}^1$

素因数の和:1112

約数の個数: 48

約数和(自身を含む): 272039040

約数和(自身を除く): 148391500

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 389, 460, 691, 778, 1382, 1556, 1945, 2764, 3455, 3890, 6910, 7780, 8947, 13820, 15893, 17894, 31786, 35788, 44735, 63572, 79465, 89470, 158930, 178940, 268799, 317860, 537598, 1075196, 1343995, 2687990, 5375980, 6182377, 12364754, 24729508, 30911885, 61823770, 123647540]

約数ペア:

[(1, 123647540), (2, 61823770), (4, 30911885), (5, 24729508), (10, 12364754), (20, 6182377), (23, 5375980), (46, 2687990), (92, 1343995), (115, 1075196), (230, 537598), (389, 317860), (460, 268799), (691, 178940), (778, 158930), (1382, 89470), (1556, 79465), (1945, 63572), (2764, 44735), (3455, 35788), (3890, 31786), (6910, 17894), (7780, 15893), (8947, 13820)]