129767900

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{6521}}^1$

素因数の和:6734

約数の個数: 36

約数和(自身を含む): 283054800

約数和(自身を除く): 153286900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1990, 3980, 4975, 6521, 9950, 13042, 19900, 26084, 32605, 65210, 130420, 163025, 326050, 652100, 1297679, 2595358, 5190716, 6488395, 12976790, 25953580, 32441975, 64883950, 129767900]

約数ペア:

[(1, 129767900), (2, 64883950), (4, 32441975), (5, 25953580), (10, 12976790), (20, 6488395), (25, 5190716), (50, 2595358), (100, 1297679), (199, 652100), (398, 326050), (796, 163025), (995, 130420), (1990, 65210), (3980, 32605), (4975, 26084), (6521, 19900), (9950, 13042)]