203478015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61381}}^1$

素因数の和:61419

約数の個数: 32

約数和(自身を含む): 371238336

約数和(自身を除く): 167760321

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 61381, 184143, 306905, 797953, 920715, 1043477, 2393859, 3130431, 3989765, 5217385, 11969295, 13565201, 15652155, 40695603, 67826005, 203478015]

約数ペア:

[(1, 203478015), (3, 67826005), (5, 40695603), (13, 15652155), (15, 13565201), (17, 11969295), (39, 5217385), (51, 3989765), (65, 3130431), (85, 2393859), (195, 1043477), (221, 920715), (255, 797953), (663, 306905), (1105, 184143), (3315, 61381)]