19975930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4153}}^1$

素因数の和:4210

約数の個数: 32

約数和(自身を含む): 39778704

約数和(自身を除く): 19802774

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4153, 4810, 8306, 20765, 41530, 53989, 107978, 153661, 269945, 307322, 539890, 768305, 1536610, 1997593, 3995186, 9987965, 19975930]

約数ペア:

[(1, 19975930), (2, 9987965), (5, 3995186), (10, 1997593), (13, 1536610), (26, 768305), (37, 539890), (65, 307322), (74, 269945), (130, 153661), (185, 107978), (370, 53989), (481, 41530), (962, 20765), (2405, 8306), (4153, 4810)]