81447568

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{61331}}^1$

素因数の和:61422

約数の個数: 20

約数和(自身を含む): 159708528

約数和(自身を除く): 78260960

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 61331, 122662, 245324, 490648, 981296, 5090473, 10180946, 20361892, 40723784, 81447568]

約数ペア:

[(1, 81447568), (2, 40723784), (4, 20361892), (8, 10180946), (16, 5090473), (83, 981296), (166, 490648), (332, 245324), (664, 122662), (1328, 61331)]