398867664

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{639211}}^1$

素因数の和:639235

約数の個数: 40

約数和(自身を含む): 1109672032

約数和(自身を除く): 710804368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 639211, 1278422, 1917633, 2556844, 3835266, 5113688, 7670532, 8309743, 10227376, 15341064, 16619486, 24929229, 30682128, 33238972, 49858458, 66477944, 99716916, 132955888, 199433832, 398867664]

約数ペア:

[(1, 398867664), (2, 199433832), (3, 132955888), (4, 99716916), (6, 66477944), (8, 49858458), (12, 33238972), (13, 30682128), (16, 24929229), (24, 16619486), (26, 15341064), (39, 10227376), (48, 8309743), (52, 7670532), (78, 5113688), (104, 3835266), (156, 2556844), (208, 1917633), (312, 1278422), (624, 639211)]