199897904

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{110563}}^1$

素因数の和:110684

約数の個数: 20

約数和(自身を含む): 390733176

約数和(自身を除く): 190835272

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 110563, 221126, 442252, 884504, 1769008, 12493619, 24987238, 49974476, 99948952, 199897904]

約数ペア:

[(1, 199897904), (2, 99948952), (4, 49974476), (8, 24987238), (16, 12493619), (113, 1769008), (226, 884504), (452, 442252), (904, 221126), (1808, 110563)]