199874475

素因数分解:

$3^2\times 5^2\times {\mathrm{647}}^1\times {\mathrm{1373}}^1$

素因数の和:2036

約数の個数: 36

約数和(自身を含む): 358811856

約数和(自身を除く): 158937381

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 647, 1373, 1941, 3235, 4119, 5823, 6865, 9705, 12357, 16175, 20595, 29115, 34325, 48525, 61785, 102975, 145575, 308925, 888331, 2664993, 4441655, 7994979, 13324965, 22208275, 39974895, 66624825, 199874475]

約数ペア:

[(1, 199874475), (3, 66624825), (5, 39974895), (9, 22208275), (15, 13324965), (25, 7994979), (45, 4441655), (75, 2664993), (225, 888331), (647, 308925), (1373, 145575), (1941, 102975), (3235, 61785), (4119, 48525), (5823, 34325), (6865, 29115), (9705, 20595), (12357, 16175)]