81813808

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1223}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 164373408

約数和(自身を除く): 82559600

約数列:

[1, 2, 4, 8, 16, 37, 74, 113, 148, 226, 296, 452, 592, 904, 1223, 1808, 2446, 4181, 4892, 8362, 9784, 16724, 19568, 33448, 45251, 66896, 90502, 138199, 181004, 276398, 362008, 552796, 724016, 1105592, 2211184, 5113363, 10226726, 20453452, 40906904, 81813808]

約数ペア:

[(1, 81813808), (2, 40906904), (4, 20453452), (8, 10226726), (16, 5113363), (37, 2211184), (74, 1105592), (113, 724016), (148, 552796), (226, 362008), (296, 276398), (452, 181004), (592, 138199), (904, 90502), (1223, 66896), (1808, 45251), (2446, 33448), (4181, 19568), (4892, 16724), (8362, 9784)]