81876016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6569}}^1$

素因数の和:6637

約数の個数: 40

約数和(自身を含む): 171082800

約数和(自身を除く): 89206784

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 3116, 6232, 6569, 12464, 13138, 26276, 52552, 105104, 124811, 249622, 269329, 499244, 538658, 998488, 1077316, 1996976, 2154632, 4309264, 5117251, 10234502, 20469004, 40938008, 81876016]

約数ペア:

[(1, 81876016), (2, 40938008), (4, 20469004), (8, 10234502), (16, 5117251), (19, 4309264), (38, 2154632), (41, 1996976), (76, 1077316), (82, 998488), (152, 538658), (164, 499244), (304, 269329), (328, 249622), (656, 124811), (779, 105104), (1558, 52552), (3116, 26276), (6232, 13138), (6569, 12464)]