81672784

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:547

約数の個数: 40

約数和(自身を含む): 161150400

約数和(自身を除く): 79477616

約数列:

[1, 2, 4, 8, 16, 113, 199, 226, 227, 398, 452, 454, 796, 904, 908, 1592, 1808, 1816, 3184, 3632, 22487, 25651, 44974, 45173, 51302, 89948, 90346, 102604, 179896, 180692, 205208, 359792, 361384, 410416, 722768, 5104549, 10209098, 20418196, 40836392, 81672784]

約数ペア:

[(1, 81672784), (2, 40836392), (4, 20418196), (8, 10209098), (16, 5104549), (113, 722768), (199, 410416), (226, 361384), (227, 359792), (398, 205208), (452, 180692), (454, 179896), (796, 102604), (904, 90346), (908, 89948), (1592, 51302), (1808, 45173), (1816, 44974), (3184, 25651), (3632, 22487)]