78163408

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{19463}}^1$

素因数の和:19722

約数の個数: 20

約数和(自身を含む): 152052768

約数和(自身を除く): 73889360

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 19463, 38926, 77852, 155704, 311408, 4885213, 9770426, 19540852, 39081704, 78163408]

約数ペア:

[(1, 78163408), (2, 39081704), (4, 19540852), (8, 9770426), (16, 4885213), (251, 311408), (502, 155704), (1004, 77852), (2008, 38926), (4016, 19463)]