81238336

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{20809}}^1$

素因数の和:20882

約数の個数: 28

約数和(自身を含む): 163857940

約数和(自身を除く): 82619604

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 244, 488, 976, 1952, 3904, 20809, 41618, 83236, 166472, 332944, 665888, 1269349, 1331776, 2538698, 5077396, 10154792, 20309584, 40619168, 81238336]

約数ペア:

[(1, 81238336), (2, 40619168), (4, 20309584), (8, 10154792), (16, 5077396), (32, 2538698), (61, 1331776), (64, 1269349), (122, 665888), (244, 332944), (488, 166472), (976, 83236), (1952, 41618), (3904, 20809)]