213419440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{205211}}^1$

素因数の和:205237

約数の個数: 40

約数和(自身を含む): 534372048

約数和(自身を除く): 320952608

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 205211, 410422, 820844, 1026055, 1641688, 2052110, 2667743, 3283376, 4104220, 5335486, 8208440, 10670972, 13338715, 16416880, 21341944, 26677430, 42683888, 53354860, 106709720, 213419440]

約数ペア:

[(1, 213419440), (2, 106709720), (4, 53354860), (5, 42683888), (8, 26677430), (10, 21341944), (13, 16416880), (16, 13338715), (20, 10670972), (26, 8208440), (40, 5335486), (52, 4104220), (65, 3283376), (80, 2667743), (104, 2052110), (130, 1641688), (208, 1026055), (260, 820844), (520, 410422), (1040, 205211)]