25641968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1637}}^1$

素因数の和:1745

約数の個数: 40

約数和(自身を含む): 54840240

約数和(自身を除く): 29198272

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 89, 176, 178, 356, 712, 979, 1424, 1637, 1958, 3274, 3916, 6548, 7832, 13096, 15664, 18007, 26192, 36014, 72028, 144056, 145693, 288112, 291386, 582772, 1165544, 1602623, 2331088, 3205246, 6410492, 12820984, 25641968]

約数ペア:

[(1, 25641968), (2, 12820984), (4, 6410492), (8, 3205246), (11, 2331088), (16, 1602623), (22, 1165544), (44, 582772), (88, 291386), (89, 288112), (176, 145693), (178, 144056), (356, 72028), (712, 36014), (979, 26192), (1424, 18007), (1637, 15664), (1958, 13096), (3274, 7832), (3916, 6548)]