77981864

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{383}}^1\times {\mathrm{821}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 151511040

約数和(自身を除く): 73529176

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 383, 766, 821, 1532, 1642, 3064, 3284, 6568, 11873, 23746, 25451, 47492, 50902, 94984, 101804, 203608, 314443, 628886, 1257772, 2515544, 9747733, 19495466, 38990932, 77981864]

約数ペア:

[(1, 77981864), (2, 38990932), (4, 19495466), (8, 9747733), (31, 2515544), (62, 1257772), (124, 628886), (248, 314443), (383, 203608), (766, 101804), (821, 94984), (1532, 50902), (1642, 47492), (3064, 25451), (3284, 23746), (6568, 11873)]