81756392

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{28309}}^1$

素因数の和:28353

約数の個数: 24

約数和(自身を含む): 161791650

約数和(自身を除く): 80035258

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 28309, 56618, 113236, 226472, 537871, 1075742, 2151484, 4302968, 10219549, 20439098, 40878196, 81756392]

約数ペア:

[(1, 81756392), (2, 40878196), (4, 20439098), (8, 10219549), (19, 4302968), (38, 2151484), (76, 1075742), (152, 537871), (361, 226472), (722, 113236), (1444, 56618), (2888, 28309)]