187021720

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{33637}}^1$

素因数の和:33787

約数の個数: 32

約数和(自身を含む): 423838800

約数和(自身を除く): 236817080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 33637, 67274, 134548, 168185, 269096, 336370, 672740, 1345480, 4675543, 9351086, 18702172, 23377715, 37404344, 46755430, 93510860, 187021720]

約数ペア:

[(1, 187021720), (2, 93510860), (4, 46755430), (5, 37404344), (8, 23377715), (10, 18702172), (20, 9351086), (40, 4675543), (139, 1345480), (278, 672740), (556, 336370), (695, 269096), (1112, 168185), (1390, 134548), (2780, 67274), (5560, 33637)]