398839402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1\times {\mathrm{439}}^1$

素因数の和:958

約数の個数: 32

約数和(自身を含む): 655079040

約数和(自身を除く): 256239638

約数列:

[1, 2, 13, 26, 83, 166, 421, 439, 842, 878, 1079, 2158, 5473, 5707, 10946, 11414, 34943, 36437, 69886, 72874, 184819, 369638, 454259, 473681, 908518, 947362, 2402647, 4805294, 15339977, 30679954, 199419701, 398839402]

約数ペア:

[(1, 398839402), (2, 199419701), (13, 30679954), (26, 15339977), (83, 4805294), (166, 2402647), (421, 947362), (439, 908518), (842, 473681), (878, 454259), (1079, 369638), (2158, 184819), (5473, 72874), (5707, 69886), (10946, 36437), (11414, 34943)]