161458760

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{12979}}^1$

素因数の和:13301

約数の個数: 32

約数和(自身を含む): 364478400

約数和(自身を除く): 203019640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 12979, 25958, 51916, 64895, 103832, 129790, 259580, 519160, 4036469, 8072938, 16145876, 20182345, 32291752, 40364690, 80729380, 161458760]

約数ペア:

[(1, 161458760), (2, 80729380), (4, 40364690), (5, 32291752), (8, 20182345), (10, 16145876), (20, 8072938), (40, 4036469), (311, 519160), (622, 259580), (1244, 129790), (1555, 103832), (2488, 64895), (3110, 51916), (6220, 25958), (12440, 12979)]